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Type of weak interaction in nuclear and atomic physics
nuclear physics and atomic physics, weak charge, or rarely neutral weak charge, refers to the Standard Model weak interaction coupling of a particle to
Weak_charge
Interaction between subatomic particles
In nuclear physics and particle physics, the weak interaction, weak force or weak nuclear force, is one of the four known fundamental interactions, with
Weak_interaction
Abelian charge found in electroweak theory
of particle physics, the weak hypercharge is a quantum number relating the electric charge and the third component of weak isospin. It is frequently
Weak_hypercharge
Quantum number related to the weak interaction
typically "weak isospin" is used as short form of the proper term "3rd component of weak isospin". It can be understood as the eigenvalue of a charge operator
Weak_isospin
Bosons that mediate the weak interaction
together known as the weak bosons or more generally as the intermediate vector bosons. These elementary particles mediate the weak interaction; the respective
W_and_Z_bosons
Explosive device or projectile that has two or more stages of detonation
against anti-tank munitions. The first stage of the weapon is typically a weak charge that either pierces the reactive armour of the target without detonating
Tandem-charge
Weak force particle interaction
have electric charge – there are both positive and negative W particles – however the Z boson is also an exchange particle for the weak force but does
Neutral_current
Angle characterizing electroweak symmetry breaking
Q-weak: A precision test of the Standard Model and determination of the weak charges of the quarks through parity-violating electron scattering. Jefferson
Weinberg_angle
Elementary particle, fundamental constituent of matter
interaction, and weak interaction), as well as the only known particles whose electric charges are not integer multiples of the elementary charge. There are
Quark
Measurement in atomic physics
screening the charge. Effective atomic numbers are useful not only in understanding why electrons further from the nucleus are so much more weakly bound than
Effective_nuclear_charge
Quantum number associated with certain grand unification theories
X charge (or simply X) is a conserved quantum number associated with the SO(10) grand unification theory. It is thought to be conserved in strong, weak
X_(charge)
Elementary particle with extremely low mass
1/2ħ and no electric charge. Antineutrinos are distinguished from neutrinos by having opposite-signed lepton number and weak isospin, and right-handed
Neutrino
Species of elementary particle
particular, the action of the weak force is such that it allows the conversion of quantum numbers describing mass and electric charge of both quarks and leptons
Flavour_(particle_physics)
Theory of forces and subatomic particles
interaction: Color charge, Quantum chromodynamics, Quark model Weak interaction: Electroweak interaction, Fermi's interaction, Weak hypercharge, Weak isospin Gauge
Standard_Model
Unified description of electromagnetism and the weak interaction
freedom. The electric charge arises as the particular linear combination (nontrivial) of Yw (weak hypercharge) and the T3 component of weak isospin ( Q = T
Electroweak_interaction
Violation of charge-parity symmetry in particle physics and cosmology
that the parity violation meant that charge conjugation invariance must also be violated in weak decays. Charge violation was confirmed in the Wu experiment
CP_violation
Scientific law regarding conservation of a physical property
interaction) Conservation of charge-parity (violated by the weak interaction) Conservation of time-parity (violated by the weak interaction) Conservation
Conservation_law
Hypothetical particle that interacts only via gravity
neutrinos in the Standard Model, which carry an isospin charge of ±+1/ 2 and engage in the weak interaction. The term typically refers to neutrinos with
Sterile_neutrino
Nuclear reaction between a neutrino and an atomic nucleus
corrections from weak axial currents. Under the further assumption that the calculation is only taken at tree-level, the weak charge can also be expressed
Coherent elastic neutrino-nucleus scattering
Coherent_elastic_neutrino-nucleus_scattering
Most basic type of physical force
weak interactions. Second, gravity always attracts and never repels; in contrast, astronomical bodies tend toward a near-neutral net electric charge,
Fundamental_interaction
Term for Japanese human wave attacks during WWII
Banzai charge or Banzai attack (Japanese: バンザイ突撃 or 万歳突撃, banzai totsugeki) is the term that was used by the Allied forces of World War II to refer to
Banzai_charge
Physicist
collaboration, Nature Physics, January 2020 Precision measurement of the weak charge of the proton Nature 557, 207-211 "Curriculum vitae" (PDF). August 2022
Julie_Roche
Physics property associated with symmetries
the charges of the Standard Model: The color charge of quarks. The color charge generates the SU(3) color symmetry of quantum chromodynamics. The weak isospin
Charge_(physics)
Attempt to explain drug bioavailability in humans
tendency for weak acids to accumulate in basic fluid compartments, and weak bases to accumulate in acidic compartments. The negative charge of deprotonated
PH_partition_theory
Type of particle charge found in the Standard Model
properties of isospin, electric charge, and flavour. The hypercharge is useful to classify hadrons; the similarly named weak hypercharge has an analogous
Hypercharge
Battle tactic of Scottish Highland clans
The Highland charge was a battlefield shock tactic used by the clans of the Scottish Highlands which incorporated the use of firearms. Prior to the 17th
Highland_charge
Flavour quantum number
is that the quark flavor ... has the same sign as its charge Q." Alexander Belyaev Chapter 17 Weak Interactions, PHYS3002: Nuclei and Particles, p. 129
Charm_(quantum_number)
Comprehensive physical model
one-third of the "elementary" charge, has led to the idea that hypercharge interactions and possibly the strong and weak interactions might be embedded
Grand_Unified_Theory
Conjecture that gravity must be the weakest force
needed] the mildest version of the weak gravity conjecture implies that there exist an object with electric charge q and mass m such that | q | m ≥ |
Weak_gravity_conjecture
Property of elementary particles
flavour charge and the electric charge of a quark have the same sign. With this, any flavour carried by a charged meson has the same sign as its charge. Strangeness
Strangeness
Quantum number related to the weak interaction
for charge to isospin would also apply to the weak interaction: Q = T 3 + 1 2 Y w . {\displaystyle Q=T_{3}+{\frac {1}{2}}Y_{w}.} Here the charge Q {\displaystyle
Isospin
Physical field surrounding an electric charge
magnitude of the charges, the greater the force, and the greater the distance between them, the weaker the force. Informally, the greater the charge of an object
Electric_field
Laboratory test
movement of liquid towards the cathode, which causes proteins with a weaker charge to move backwards from the application site. Gamma proteins are primarily
Serum_protein_electrophoresis
Binding of quarks in subatomic particles
color charge of the particle, a group-theoretical property. The strong force acts between quarks. Unlike all other forces (electromagnetic, weak, and gravitational)
Strong_interaction
Mathematics of a particle physics model
unification with the weak force. The electric charge Q, third component of weak isospin T3 (also called Tz, I3 or Iz) and weak hypercharge YW are related
Mathematical formulation of the Standard Model
Mathematical_formulation_of_the_Standard_Model
Class of elementary particles
interactions: gravitation, the weak interaction, and to electromagnetism, of which the latter is proportional to charge, and is thus zero for the electrically
Lepton
Unitary matrix containing information on the weak interaction
weak interaction. Technically, it specifies the mismatch of quantum states of quarks when they propagate freely and when they take part in the weak interactions
Cabibbo–Kobayashi–Maskawa matrix
Cabibbo–Kobayashi–Maskawa_matrix
Assembly of molecules or ions
degree of charge transfer is "complete", such that the CT complex can be classified as a salt. In other cases, the charge-transfer association is weak, and
Charge-transfer_complex
Indian actor
"Vinayakan released on bail after medical exam, MLA Uma Thomas questions 'weak charges'". OnManorama. Retrieved 25 October 2023. "'Jailer' actor Vinayakan arrested
Vinayakan
Principle in particle physics
electromagnetism, the strong, and weak nuclear forces. The property of charge invariance is embedded in the charge density – current density four-vector
Charge_invariance
One way that particles can interact with the weak force
exchange of W bosons involves a transfer of electric charge (as well as a transfer of weak isospin, while weak hypercharge is not transferred), it is known as
Charged_current
Imbalance of electric charges within or on the surface of a material
Static electricity is an imbalance of electric charges within or on the surface of a material. The charge remains until it can move away as an electric
Static_electricity
Fundamental physical law of electromagnetism
attract, while electrostatic forces make charges attract or repel. Also, gravitational forces are much weaker than electrostatic forces. Coulomb's law
Coulomb's_law
Particle smaller than an atom
carriers): the photon of electromagnetism, the three W and Z bosons of the weak force, and the eight gluons of the strong force; The Higgs boson. All of
Subatomic_particle
Quantum number; the difference between the baryon and lepton numbers
= −1). The weak hypercharge YW is related to B − L via X + 2 Y W = 5 ( B − L ) , {\displaystyle X+2\,Y_{\text{W}}=5\,(B-L),} where X charge (not to be
B_−_L
Quantum particle
of parity violation in the weak interaction (most significantly, by the Wu experiment). Since the mesons decay through weak interactions, parity is not
Kaon
Chemical compound involving ionic bonding
charged ions (anions), which results in a compound with no net electric charge. The constituent ions are held together by electrostatic forces termed ionic
Salt_(chemistry)
Subatomic particle having no substructure
particle flavor or charges, but rather changes momentum; it is the only mechanism for elastically scattering neutrinos. The weak gauge bosons were discovered
Elementary_particle
Method in physics used to deal with infinities
mass and charge than initially postulated. Renormalization, in this example, mathematically replaces the initially postulated mass and charge of an electron
Renormalization
1994 copyright infringement lawsuit
too long to file a copyright infringement case and had to resort to a weaker charge of unfair competition". The district court ruled that it would require
Apple Computer, Inc. v. Microsoft Corp.
Apple_Computer,_Inc._v._Microsoft_Corp.
Anti-particle to the electron
The positron or antielectron is the particle with an electric charge of +1e, a spin of 1/2 ħ (the same as the electron), and the same mass as an electron
Positron
Study of subatomic particles and forces
fundamental interactions known to be mediated by bosons are electromagnetism, the weak interaction, and the strong interaction. Quarks form hadrons, but cannot
Particle_physics
Elementary subatomic particle with negative electric charge
an elementary particle similar to the electron, with negative electric charge and a spin of 1/2. Like the electron, the muon, and the three neutrinos
Tau_(particle)
Theoretical framework in physics
second major barrier came with QFT's apparent inability to describe the weak and strong interactions, to the point where some theorists called for the
Quantum_field_theory
Electric charge which is not an integer multiple of elementary charge
to indicate even weaker partial charges as well. Generally, a single δ+ (or δ−) is sufficient for most discussions of partial charge in organic chemistry
Partial_charge
Type of quark
interactions: gravitation, electromagnetism, weak interactions, and strong interactions. It has an electric charge of +2/3 e. It has a mass of 172.76±0.3 GeV/c2
Top_quark
Term used in physics to refer to the number of bottom quarks
strong and electromagnetic interactions, but not under weak interactions. For first-order weak reactions, it holds that Δ B ′ = ± 1 {\displaystyle \Delta
Bottomness
Physico-chemical phenomenon with biochemistry applications
charge transfer states in which an important fraction of an atomic charge has been transferred from one nucleobase to another. The latter are weakly emissive
Intrinsic_DNA_fluorescence
Phenomena related to electric charge
charge, the electric field at a distance is usually zero. Thus gravity is the dominant force at distance in the universe, despite being much weaker.
Electricity
Naval gun
lower the muzzle velocity of the APC rounds by utilizing the same (weaker) charge as the HE shells – 41.8 kg. This reduced working pressure to the same
203_mm/53_Italian_naval_gun
Electron-electron scattering
arXiv:hep-ex/0504049. Bibcode:2005PhRvL..95h1601A. doi:10.1103/PhysRevLett.95.081601. PMID 16196849. S2CID 28919840. SLAC E158: Measuring the Electron's WEAK Charge
Møller_scattering
Feature of a system that is preserved under some transformation
where everything is mirrored along the three physical axes. This excludes weak interactions as demonstrated by Chien-Shiung Wu. T-symmetry (time reversal
Symmetry_(physics)
1942 lynching of an African American in the US
sympathized with the lynchers, and the lack of an anti-lynching law led to a weaker charge of conspiracy to violate Wright's constitutional rights. This Department
Lynching_of_Cleo_Wright
Sensitive explosive charge
An explosive booster is a sensitive explosive charge that acts as a bridge between a (relatively weak) conventional detonator and a low-sensitivity (but
Explosive_booster
Tendency of the brain to prefer visual input from one eye to the other
possibly in migraine sufferers as well. Eye dominance has been categorized as "weak" or "strong"; highly profound cases are sometimes caused by amblyopia or
Ocular_dominance
Type of quark
experiences all four fundamental interactions: gravitation, electromagnetism, weak interactions, and strong interactions. The antiparticle of the strange quark
Strange_quark
Elementary particle involved with rest mass
has charge +1/2 under the weak hypercharge U(1) symmetry. Note: This article uses the scaling convention where the electric charge, Q, the weak isospin
Higgs_boson
Net attractive interaction involving one of the halogen elements
(1978). "CX4...Base Interactions as Models of Weak Charge-transfer Interactions: Comparison with Strong Charge-transfer and Hydrogen-bond Interactions". J
Halogen_bond
Particle accelerator laboratory in Newport News, Virginia, USA
study, for example, parity-violating electron scattering to measure the weak charge of the proton and hypernuclear production with the electromagnetic interaction
Jefferson_Lab
Class of subatomic particle
neutral weak boson – the force carrier that mediates the weak force W± charged weak bosons (two types) – also force carriers that mediate the weak force
Boson
Prime Minister of Israel (1996–1999; 2009–2021; 2022–present)
agreement between Israel and Lebanon. Israel is stronger than ever; Iran is weaker than ever. I have already brought four peace agreements with Arab nations
Benjamin_Netanyahu
Electrically insulating substance able to be polarised by an applied electric field
overall field within the dielectric itself. If a dielectric is composed of weakly bonded molecules, those molecules not only become polarised, but also reorient
Dielectric
Characteristic feature of the optical spectra of many compounds
spin-allowed and Laporte-allowed. The weaker d–d transitions are potentially spin-allowed but always Laporte-forbidden. Charge-transfer bands of transition metal
Charge-transfer_band
President of the United States (2017–2021; since 2025)
his political enemies. Under pressure to bring charges against his opponents, prosecutors advanced weak cases which were rejected by grand juries and admonished
Donald_Trump
List of particles in matter including fermions and bosons
opposite electric charge (for example the up quark carries charge +2/3e, while the up antiquark carries charge −2/3e), color charge, and baryon number
List_of_particles
British TV sitcom (1983–1989)
intelligent, conniving Blackadder of the later series than the snivelling, weak buffoon of the original. Set in the year 1582, the script of the pilot is
Blackadder
President of Russia (2000–2008; since 2012)
former leader of East Germany, said the Cold War never ended, adding: "After weak presidents like Gorbachev and Yeltsin, it is a great fortune for Russia that
Vladimir_Putin
2023 smartphone by Apple
not charge the iPhone at all or the iPhone will attempt to charge the power bank instead. Some owners of BMW vehicles using its wireless charging system
IPhone_15_Pro
Subatomic particle
than many other unstable particles because the decay is mediated by the weak interaction and because the mass difference between the muon and the set
Muon
Pejorative slang word for a person or thing, mainly a woman
bitch reverses its meaning and is a derogatory term for being subordinate, weak, or cowardly. In gay speech the word bitch can refer approvingly to a man
Bitch_(slang)
Measure of the tendency of an acid to dissociate
a weak acid. The strength of a weak acid is quantified by its acid dissociation constant, K a {\displaystyle K_{a}} value. The strength of a weak organic
Acid_strength
Brazilian police investigation
The Operation Carne Fraca (Operation Weak Meat in Brazilian media in English) is an operation started on March 17, 2017, and enforced by the Federal Police
Operation_Weak_Meat
Elementary particle with negative charge
to the forces of gravity, electromagnetism, and the weak interaction. Since an electron has charge, it has a surrounding electric field; if that electron
Electron
Guantanamo detainee
learns from this case, among other things, is ... don't bring skimpy or weak charges of conspiracy. The American Civil Liberties Union's spokesman Ben Wizner
Salim_Hamdan
Card for financial transactions on credit
current accounts suggest that the argument that these charges are penalties for breach of contract is weak, and given the Office of Fair Trading's ruling it
Credit_card
Asynchronous circuit design methodology
adversarial path assumption also deals with wire forks, but is ultimately weaker than the isochronic fork assumption. At some point in the circuit after
Quasi-delay-insensitive circuit
Quasi-delay-insensitive_circuit
Naval gun
still limited to weak charges and low muzzle velocity, and most guns were strengthened by being chase-hooped to allow a full powder charge of 48 lb gunpowder
BL_6-inch_Mk_II–VI_naval_gun
Indian actress and former Chief Minister of Tamil Nadu (1948–2016)
Constitutive body of United Nations recognising her services in protecting the weaker section of society and in the field of gender equality in Tamil Nadu and
J._Jayalalithaa
Difference between number of leptons and antileptons
numbers that match the signs of the charges of the leptons involved, following the convention in use for the sign of weak isospin and the sign of strangeness
Lepton_number
Subatomic particle with positive charge
subatomic particle, symbol p, H+, or 1H+ with a positive electric charge of +1 e (elementary charge). Its mass is slightly less than the mass of a neutron and
Proton
Model of neutrino oscillation
lepton that it partners with in the charged-current weak interaction. These three eigenstates of the weak interaction form a complete, orthonormal basis for
Pontecorvo–Maki–Nakagawa–Sakata matrix
Pontecorvo–Maki–Nakagawa–Sakata_matrix
Type of quark
experiences all four fundamental interactions: gravitation, electromagnetism, weak interactions, and strong interactions. The antiparticle of the up quark is
Up_quark
Hypothetical particles that may constitute dark matter
Weakly interacting massive particles (WIMPs) are hypothetical particles that are one of the proposed candidates for dark matter. These particles would
Weakly interacting massive particle
Weakly_interacting_massive_particle
weak interaction: Q = T 3 + 1 2 Y . {\displaystyle Q=T_{3}+{\frac {1}{2}}Y.} Here the charge Q {\displaystyle Q} is related to the projection of weak
Gell-Mann–Nishijima_formula
Quantum number relating the quantity of quarks and antiquarks in a system
and String theory. Quarks carry not only electric charge, but also charges such as color charge and weak isospin. Because of a phenomenon known as color
Baryon_number
Constraints on possible particle properties
is also moving through a condensate of such charges, and so, isn't an exact eigenstate of the weak charges and this theorem doesn't apply either. On a
Weinberg–Witten_theorem
Type of quark
reflecting the fact that the two were the "up" and "down" component of a weak isospin doublet. Evidence for the bottom quark was first obtained in 1977
Bottom_quark
Dictator of Germany from 1933 to 1945
reserves against the American and British armies, which he perceived as far weaker. On 16 December, he launched the Ardennes Offensive to incite disunity among
Adolf_Hitler
Chemical compound giving a proton or accepting an electron pair
sense) that are solids, liquids, or gases. Strong acids and some concentrated weak acids are corrosive, but there are exceptions such as carboranes and boric
Acid
Quantum state with the lowest possible energy
prize for this work in 1965. Today, the electromagnetic interactions and the weak interactions are unified (at very high energies only) in the theory of the
Quantum_vacuum_state
WEAK CHARGE
WEAK CHARGE
Boy/Male
Biblical
Weak, slacked.
Boy/Male
Spanish
Weak.
Boy/Male
Tamil
Peak
Surname or Lastname
English
English : topographic name for someone living by a pointed hill (or regional name from the Peak District (Old English Pēaclond) in Derbyshire), named with Old English pēac ‘peak’, ‘pointed hill’ (found only in place names). This word is not directly related to Old English pīc ‘point’, ‘pointed hill’, which yielded Pike; there is, however, some evidence of confusion between the two surnames.Possibly also Irish : reduced form of McPeak.Major concentrations of the surname Peak are found in Staffordshire and the West Country of England. Among the earliest known bearers are Richard del Pech or del Pek (d. 1196), son of Rannulf, sheriff of Nottingham, and Willielmus Piec (Winchester 1194). A century later, c.1284, a certain Richard del Peke settled in Denbighshire (now part of Clwyd), Wales, receiving lands from Henry de Lacey, earl of Lincoln, in return for helping to control the region. His descendants, who bear the name Peak(e), can be traced to the present day, and are found in New Zealand and Canada as well as in Britain. Peake is also the name of a family descended from John Pyke, who paid rent to the abbot of Leicester in 1477. The name took various forms, such as Peke and Pick, eventually becoming established as Peak in the 17th century.
Girl/Female
Hindu, Indian, Traditional
Peak
Boy/Male
Arabic, Muslim
Weak
Boy/Male
Arabic, Muslim
Weak
Biblical
weak; slacked
Boy/Male
Australian, Hindu, Indian
Peak
Surname or Lastname
English
English : variant of Week.
Girl/Female
Tamil
Peak
Surname or Lastname
English
English : variant spelling of Leake.
Boy/Male
Gujarati, Hindu, Indian, Kannada, Malayalam, Marathi, Sindhi, Tamil, Telugu
Peak
Surname or Lastname
English
English : variant of Wick, specifically a habitational name from any of various places called Week or Weeke, notably in Cornwall, Hampshire, and Somerset.Americanized spelling of Norwegian or Swedish Vik.
Boy/Male
Hindu
Peak
Boy/Male
Hindu, Indian
Week
Girl/Female
Australian, Christian, French, German, Hebrew
Hair; Lovelorn; Delicate; Weak
Surname or Lastname
English (Northumbria)
English (Northumbria) : topographic name for someone who lived by the Wear river in northern England. The river name is ancient, occuring in the form Vedra in Ptolemy’s Geographia; it is probably a Celtic word meaning ‘water’.English (Northumbria) : topographic name for someone who lived near a dam or weir, a variant spelling of Ware 1, or a habitational name from a place called Weare, in Devon and Somerset, from Old English wær, wer ‘weir’.
Girl/Female
Indian
Peak
Boy/Male
Arabic
One who has Weak Eyes
WEAK CHARGE
WEAK CHARGE
Boy/Male
Tamil
Awesome
Female
Vietnamese
Vietnamese unisex name HIEN means "gentle, quiet."
Surname or Lastname
Welsh
Welsh : nickname for a fat man, from tew ‘plump’.English : habitational name from a place in Oxfordshire (Great, Little and Duns Tew), named with an Old English tīewe ‘row’, ‘ridge’. The surname has been established in Ireland since the 16th century.
Boy/Male
Latin
Tranquil.
Girl/Female
Tamil
A devoted one, Tender, Woman of magdala, To be present in latent
Boy/Male
Tamil
A musical note
Boy/Male
Hindu, Indian, Tamil, Telugu
An Object that Gives Light and Never Stops Doing so
Girl/Female
Spanish
Feminine of Maurice: dark;dark-skinned.
Boy/Male
Arabic
Servant of the king.
Girl/Female
Hindu
Being near, The Lord Saibaba message
WEAK CHARGE
WEAK CHARGE
WEAK CHARGE
WEAK CHARGE
WEAK CHARGE
v. i.
Feeble of mind; wanting discernment; lacking vigor; spiritless; as, a weak king or magistrate.
v. t.
To cause or make by friction or wasting; as, to wear a channel; to wear a hole.
v. i.
Lacking ability for an appropriate function or office; as, weak eyes; a weak stomach; a weak magistrate; a weak regiment, or army.
v. i.
Not firmly united or adhesive; easily broken or separated into pieces; not compact; as, a weak ship.
v. i.
Not thoroughly or abundantly impregnated with the usual or required ingredients, or with stimulating and nourishing substances; of less than the usual strength; as, weak tea, broth, or liquor; a weak decoction or solution; a weak dose of medicine.
n.
The upper aftermost corner of a fore-and-aft sail; -- used in many combinations; as, peak-halyards, peak-brails, etc.
a.
To make or become weak; to weaken.
v. i.
Not having power to convince; not supported by force of reason or truth; unsustained; as, a weak argument or case.
v. i.
Wanting in point or vigor of expression; as, a weak sentence; a weak style.
v. i.
Not able to resist external force or onset; easily subdued or overcome; as, a weak barrier; as, a weak fortress.
v.
A crack, crevice, fissure, or hole which admits water or other fluid, or lets it escape; as, a leak in a roof; a leak in a boat; a leak in a gas pipe.
v. i.
Not able to sustain a great weight, pressure, or strain; as, a weak timber; a weak rope.
v. i.
Tending towards lower prices; as, a weak market.
v. i.
Lacking in elements of political strength; not wielding or having authority or energy; deficient in the resources that are essential to a ruler or nation; as, a weak monarch; a weak government or state.
v. i.
Not able to withstand temptation, urgency, persuasion, etc.; easily impressed, moved, or overcome; accessible; vulnerable; as, weak resolutions; weak virtue.
a.
Having a weak mind, either naturally or by reason of disease; feebleminded; foolish; idiotic.
v. i.
Wanting in power to influence or bind; as, weak ties; a weak sense of honor of duty.
v. i.
Not stiff; pliant; frail; soft; as, the weak stalk of a plant.
v. i.
To rise or extend into a peak or point; to form, or appear as, a peak.
a.
Having weak knees; hence, easily yielding; wanting resolution.