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Artistic representation of three circular leaf shapes used in architecture
A trefoil (from Latin trifolium 'three-leaved plant') is a graphic form composed of the outline of three overlapping rings, used in architecture, Pagan
Trefoil
Topics referred to by the same term
Look up trefoil in Wiktionary, the free dictionary. A trefoil (three leaf) is a graphic form composed of three leaves or lobes. Trefoil may also refer
Trefoil_(disambiguation)
Simplest non-trivial closed knot with three crossings
knot theory, a branch of mathematics, the trefoil knot is the simplest example of a nontrivial knot. The trefoil can be obtained by joining the two loose
Trefoil_knot
Plant species in the pea family
Common names include common bird's-foot trefoil, eggs and bacon, birdsfoot deervetch, and just bird's-foot trefoil (a name also often applied to other Lotus
Lotus_corniculatus
List of ships with the same or similar names
USS Trefoil has been the name of two ships of the United States Navy. USS Trefoil (1865), a wooden-hulled screw steamboat purchased by the Navy and used
USS_Trefoil
Species of legume
large tick-trefoil, clustered-leaved tick-trefoil, large-flowered tick-clover, pointed tick-trefoil, beggar's lice and pointed-leaved tick-trefoil. It occurs
Hylodesmum_glutinosum
Species of flowering plant in the bean family Fabaceae
Trifolium dubium, the lesser trefoil, suckling clover, little hop clover or lesser hop trefoil, is a flowering plant in the pea and clover family Fabaceae
Trifolium_dubium
Arch incorporating the outline of a trefoil
A trefoil arch, or three-foiled cusped arch (occasionally trilobite arch, no connection to an actual trilobite), is an arch incorporating the shape or
Trefoil_arch
Warning symbol on locations or products
conflicts on event infographics. The international radiation symbol is a trefoil around a small central circle representing radiation from an atom. It was
Hazard_symbol
Species of flowering plant in the bean family
trefoil, large trefoil, large hop clover, golden clover or hop clover, is a species of flowering plant native to much of Eurasia. Large hop trefoil is
Trifolium_aureum
Plant species in the pea family
names include narrowleaf trefoil, narrow-leaved bird's-foot-trefoil, slender trefoil, creeping trefoil, or prostrate trefoil. "Lotus tenuis Waldst. &
Lotus_tenuis
Species of legume
Lotus alpinus, common name alpine bird's-foot trefoil, is a species of legume in the family Fabaceae. L. alpinus can reach a height of 2–10 cm (0.79–3
Lotus_alpinus
Award
The Military Order of the Iron Trefoil, also known as the Croatian Cross, was the highest military decoration of the Independent State of Croatia. It
Military Order of the Iron Trefoil
Military_Order_of_the_Iron_Trefoil
Plant species in the bean family
hop medic, black clover, black hay, blackweed, English trefoil, hop trefoil, and yellow trefoil. Some of these names are also applied to wildflowers of
Medicago_lupulina
International female-oriented youth organization
Miss Kari Aas designed the World Trefoil emblem that was adopted at the World Conference in 1930, a gold trefoil on a blue background. The three leaves
World Association of Girl Guides and Girl Scouts
World_Association_of_Girl_Guides_and_Girl_Scouts
Protein-coding gene in the species Homo sapiens
Trefoil factor 3 is a protein that in humans is encoded by the TFF3 gene. Members of the trefoil family are characterized by having at least one copy of
Trefoil_factor_3
Protein-coding gene in the species Homo sapiens
Trefoil factor 1 is a protein that in humans is encoded by the TFF1 gene (also called pS2 gene). Members of the trefoil family are characterized by having
Trefoil_factor_1
Genus of legumes
a genus of plants in the legume family Fabaceae, sometimes called tick-trefoil, tick clover, hitch hikers or beggar lice. There are dozens of species
Desmodium
Species of legume
Grona triflora, known as creeping tick trefoil or three-flower beggarweed, is a plant in the family Fabaceae. It is native to tropical regions around
Grona_triflora
Species of legume
Lotus australis, known by its common name of austral trefoil, is a small, spreading herb from the family Fabaceae. It normally grows to around 30–50 cm
Lotus_australis
Species of legume
pedunculatus (formerly Lotus uliginosus), the big trefoil, greater bird's-foot-trefoil or marsh bird's-foot trefoil, is a member of the pea family (Fabaceae)
Lotus_pedunculatus
Island in Tasmania, Australia
Trefoil Island (in palawa kani : Titima), officially known as titima / Trefoil Island, is an island with an area of 115.79 ha, in south-eastern Australia
Trefoil_Island
Species of flowering plant in the bean family Fabaceae
Trifolium campestre, commonly known as hop trefoil, field clover and low hop clover, is a species of flowering plant native to Europe and western Asia
Trifolium_campestre
Germanic multi-triangular symbol, occurs in several forms
distinct forms. The symbol appears in unicursal form, topologically a trefoil knot also seen in the triquetra. This unicursal form is found, for example
Valknut
Gunboat of the United States Navy
USS Trefoil was a 370-ton steamer purchased by the Union Navy at the last year of the American Civil War. Trefoil, with a crew of 44 and a powerful Parrott
USS_Trefoil_(1865)
Type of protein fold that makes a trefoil knot
The trefoil knot fold is a protein fold in which the protein backbone is twisted into a trefoil knot shape. "Shallow" knots in which the tail of the polypeptide
Trefoil_knot_fold
Species of legume
eastern North America. Its common names include showy tick-trefoil, Canadian tick-trefoil, and Canada tickclover. The plant is a perennial herb and grows
Desmodium_canadense
Genus of flowering plants in the bean family Fabaceae
(λωτός), is a genus of flowering plants that includes most bird's-foot trefoils (also known as bacon-and-eggs) and deervetches. Depending on the taxonomic
Lotus_(genus)
Genus of flowering plants
minor Michx. It is known in English by the common names bogbean, marsh trefoil and buckbean. Menyanthes trifoliata has a horizontal rhizome with alternate
Menyanthes
Index of plants with the same common name
Slender trefoil is a common name for multiple plants and may refer to: Lotus tenuis, native to western and southern Europe and southwest Asia Trifolium
Slender_trefoil
Species of plant
Desmodium nudiflorum), the naked-flowered tick trefoil, panicled leaf tick trefoil or stemless tick trefoil, is a species of flowering plant in the family
Hylodesmum_nudiflorum
Protein fold
In molecular biology the β trefoil fold is a protein fold that consists of six beta hairpins, each formed by two beta strands. Together these form a beta
Beta_trefoil_fold
Island in Tasmania, Australia
Little Trefoil Island is a small island with an area of 0.64 ha, in south-eastern Australia. It is part of Tasmania’s Trefoil Island Group, lying close
Little_Trefoil_Island
Protein-coding gene in the species Homo sapiens
Trefoil factor 2 is a protein that in humans is encoded by the TFF2 gene. Members of the trefoil family are characterized by having at least one copy of
Trefoil_factor_2
"Torch & Trefoil" (PDF). May 1935. p. 10. "Torch & Trefoil" (PDF). March 1956. p. 2. "Torch & Trefoil" (PDF). April 1948. p. 4. "Torch & Trefoil" (PDF)
List of Alpha Phi Omega members
List_of_Alpha_Phi_Omega_members
Wine jug and a key form of ancient Greek pottery
one handle, which may be opposite a trefoil mouth and pouring spout. At its most distinct development, the trefoil mouth offers three alternative directions
Oenochoe
Species of legume
North America. It is known by the common names rosy bird's-foot trefoil and thicket trefoil. It grows in mountains and canyons, often in moist areas. It
Hosackia_rosea
Line of shoes by Adidas
shoe released by Adidas in 1972. It was the first shoe to feature the trefoil logo. Adidas released the SL 72 as a lightweight alternative to its other
Adidas_SL_72
Species of plant
Cardamine trifolia, the trefoil cress, trifoliate bittercress, or three-leaved cuckoo flower, is a species of flowering plant in the family Brassicaceae
Cardamine_trifolia
Genus of legumes
Clovers, also called trefoils, are plants of the genus Trifolium (from Latin tres 'three' and folium 'leaf'). They are herbaceous plants growing up to
Clover
Nothospecies of plant
family known by the common names trailing tick-trefoil, eastern trailing tick-trefoil, and spreading tick-trefoil. It is native to the eastern United States
Desmodium_×_humifusum
Mapping which preserves all topological properties of a given space
result from continuous deformations, such as the homeomorphism between a trefoil knot and a circle. Homotopy and isotopy are precise definitions for the
Homeomorphism
Technical standard for radiation warning symbols
reappeared: individuals who encountered the source were unfamiliar with the trefoil radiation warning symbol, and were in some cases not familiar with the
ISO_21482
Species of shrub
deerweed, deer weed, deervetch, California broom or western bird's-foot trefoil) is a perennial subshrub in the family Fabaceae (pea family). The plant
Acmispon_glaber
Study of mathematical knots
unknot. So the trefoil really is "knotted". The left-handed trefoil knot. The right-handed trefoil knot. Actually, there are two trefoil knots, called
Knot_theory
English football club season
Kits using Adidas's Trefoil trademark Third 0 Third alt. 0 Goalkeeper3 0 Goalkeeper5 0 Goalkeeper6 0
2025–26_Arsenal_F.C._season
Species of legume
Dillenius' tick-trefoil in honor of Johann Dillenius, a British botanist of German birth. It is also known as the tall tick-trefoil. Desmodium glabellum
Desmodium_glabellum
Species of legume
Lotus berthelotii is a flowering plant endemic to the Canary Islands of Spain, in the genus Lotus of the pea family Fabaceae. Among its common names are
Lotus_berthelotii
Company that manages Roy Edward Disney's personal holdings
working capital by Trefoil and Child World remaining stable. A downturn in the Northwest region, where Child World is based, lead Trefoil to terminate the
Shamrock_Holdings
Meeting" (PDF). Torch & Trefoil. 98 (3): 4. Fall 2022. Retrieved April 30, 2025. "February Board Summary" (PDF). Torch & Trefoil. 86 (3): 4. Summer 2010
List of Alpha Phi Omega chapters
List_of_Alpha_Phi_Omega_chapters
Species of legume
Hosackia crassifolia, synonym Lotus crassifolius, is a species of legume found in the western United States. It is known by the common names big deervetch
Hosackia_crassifolia
Connected sum of two trefoil knots with same chirality
identical trefoil knots. It is closely related to the square knot, which can also be described as a connected sum of two trefoils. Because the trefoil knot
Granny_knot_(mathematics)
Species of legume
Acmispon americanus, known by the common names American bird's-foot trefoil and Spanish clover, is a species of legume native to most habitats of California
Acmispon_americanus
Connected sum of two trefoil knots with opposite chirality
of a trefoil knot with its reflection. It is closely related to the granny knot, which is also a connected sum of two trefoils. Because the trefoil knot
Square_knot_(mathematics)
American cargo barge
USS Trefoil (IX-149), the lead ship of her class of concrete-hulled cargo barge, was the second ship of the United States Navy to be given that name.
USS_Trefoil_(IX-149)
Star at the centre of the Solar System
and Uranus are in opposition) the motion is rather regular, forming a trefoil pattern, whereas between these periods it appears more chaotic. After 179
Sun
Plant species in the wood-sorrel family
and pickles, particularly by children. Other sour names include sour trefoil, wood sour, pickel plant, and lemon clover. For the shape of its seed capsule
Oxalis_stricta
Species of flowering plant in the legume family
species in the pea and bean family, Fabaceae. Common names include moon trefoil, shrub medick, alfalfa arborea, and tree medick. The shrub is 1–4 metres
Medicago_arborea
Artistic representation of four circular leaf shapes used in architecture
brands' creative development. A similar shape with three rings is called a trefoil, while a shape with five is a cinquefoil. The quatrefoil enjoyed its peak
Quatrefoil
Island country in Southern Europe
Mnajdra. The temples have distinctive architecture, typically a complex trefoil design, and were used from 4000 to 2500 BC. Tentative information suggests
Malta
the peripheral subgroup is sufficient to distinguish these knots. The trefoil and its mirror image are distinct knots, and consequently there is no
Peripheral_subgroup
Tennis shoe by Adidas
Adidas trefoil logo and the text Stan Smith under the logo, and the inner sole has a printed pattern consisting of the text Adidas and the trefoil logo
Adidas_Stan_Smith
Curved structure that spans a space and may support a load
European Late Gothic, can be found in Romanesque architecture. A similar trefoil arch includes only three segments and sometimes has a rounded, not pointed
Arch
Species of legume
Trifolium striatum, the knotted clover, soft trefoil, is a flowering plant species in the pea and bean family, Fabaceae. Wikimedia Commons has media related
Trifolium_striatum
Card game
The Fan, Clover Leaves, Three Shuffles and a Draw, Alexander the Great, Trefoil, and Midnight Oil. All cards are visible from the start, but this does
La_Belle_Lucie
Species of plant
Lotus angustissimus, the slender bird's foot trefoil, is a plant in the genus Lotus. It has a wide distribution, from Macaronesia to Xinjiang in China
Lotus_angustissimus
Species of legume
California. It is known by the common names meadow bird's-foot trefoil and bog bird's-foot trefoil. Its distribution extends into British Columbia in just a
Hosackia_pinnata
Notation for mathematical knots
For example, the Gauss code for the trefoil knot does not specify if it is the right-handed or left-handed trefoil. This last issue is often solved by
Gauss_notation
Knot which lies on the surface of a torus in 3-dimensional space
simplest nontrivial example is the (2,3)-torus knot, also known as the trefoil knot. A torus knot can be rendered geometrically in multiple ways which
Torus_knot
Species of legume
and northwest Mexico. It is known by the common name silver bird's-foot trefoil or silver lotus. It is native to northwest Mexico and California, where
Acmispon_argophyllus
Species of plant
incanum, also known as creeping beggarweed, Spanish clover, Spanish tick-trefoil or hitchhikers is a perennial plant native to Central and South America
Desmodium_incanum
Integer-valued knot invariant; least number of crossings in a knot diagram
invariant. By way of example, the unknot has crossing number zero, the trefoil knot three and the figure-eight knot four. There are no other knots with
Crossing_number_(knot_theory)
Species of legume
Bituminaria bituminosa, the Arabian pea or pitch trefoil, is a perennial Mediterranean herb species in the genus Bituminaria. The pterocarpans bitucarpin
Bituminaria_bituminosa
Species of true bug
Plagiognathus chrysanthemi, the trefoil plant bug, is a species of plant bug in the family Miridae. It is found across the entire Palearctic and in North
Plagiognathus_chrysanthemi
Topics referred to by the same term
series produced by Gameloft Asphalt, Kentucky USS Asphalt (IX-153), a Trefoil-class concrete barge Asphalt modified racing, a variant of modified stock
Asphalt
Hindu temple in Jammu and Kashmir, India
with lintels supporting triangular pediments containing trefoil arches. The front facing trefoil arch contains a relief of Shiva in his Lakulisha form,
Pandrethan_Shiva_Temple
off again. The patterns of many scales can be found to be based on the Trefoil knot. This is used to represent the spatial model of the "standard scale
Space_Harmony
topology topics. 01 knot/Unknot - a simple un-knotted closed loop 31 knot/Trefoil knot - (2,3)-torus knot, the two loose ends of a common overhand knot joined
List of mathematical knots and links
List_of_mathematical_knots_and_links
Modular space station in low Earth orbit
Spaceflight Asagao (Japanese morning glory), Miyako-gusa (Japanese bird's foot trefoil) Seeds and Identify the Mutants!". JAXA. 2006. Archived from the original
International_Space_Station
to securely join the ends of two ropes together Ashley's stopper knot – trefoil-faced stopper at the end of the rope Axle hitch – used to tie a hitch in
List_of_knots
difference of left-trefoil knot and right-trefoil knot, while the Jones polynomial can. The left-trefoil knot. The right-trefoil knot. So we have the
Knot_polynomial
Mathematical theory
curve can be classified as a trefoil knot. If the ends are connected to other points on the sphere, the curve may be an unknot (green) or a trefoil (red).
Open_knot_theory
Monastery in Saraj, North Macedonia
featuring a cross plan and a trefoil apse. The northern and southern trefoils serve as choirs, while the eastern trefoil functions as the altar apse.
St. Andrew's Monastery (Matka)
St._Andrew's_Monastery_(Matka)
Unique knot with a crossing number of four
the third-smallest possible crossing number, after the unknot and the trefoil knot. The figure-eight knot is a prime knot. The name is given because
Figure-eight knot (mathematics)
Figure-eight_knot_(mathematics)
Species of legume
Desmodium paniculatum, the panicled-leaf ticktrefoil, narrow-leaf tick-trefoil or panicled tickclover, is a perennial herb in the pea family, Fabaceae
Desmodium_paniculatum
Triangular motif formed of three interlaced arcs or loops
Interlaced triquetra which is a trefoil knot
Triquetra
Species of legume
Desmodium cuspidatum, common name large-bracted tick-trefoil, is a species of plant in the legume family, Fabaceae. It is native to North America. The
Desmodium_cuspidatum
Leaf-like pattern produced by overlapping circles of equal size
of cusps to make a lobe. Typically, the number of cusps can be three (trefoil), four (quatrefoil), five (cinquefoil), or a larger number (multifoil)
Foil_(architecture)
9th-century Cumbrian hoard
hoard of 542 copper alloy coins of the Kingdom of Northumbria and a silver trefoil ornament, which were discovered amongst tree roots in 1808 within the parish
Kirkoswald_hoard
Species of legume
the subterranean clover (often shortened to sub clover), subterranean trefoil, is a species of clover native to Europe, Southwest Asia, Northwest Africa
Trifolium_subterraneum
Type of knot
prevent the end of a rope from unraveling. An overhand knot becomes a trefoil knot, a true knot in the mathematical sense, by joining the ends. It can
Overhand_knot
Highest award in the United States Armed Forces
Institute of Heraldry as "a gold five-pointed star, each point tipped with trefoils, 1+1⁄2 inches [3.8 cm] wide, surrounded by a green laurel wreath and suspended
Medal_of_Honor
Knot that bounds an embedded disk in 4-space
The signature of a trefoil knot is ±2 and the signature of the concordance class of the connected sum of n {\displaystyle n} trefoils is ± 2 n {\displaystyle
Slice_knot
Knot that is not equivalent to its mirror image
knots. Both possible trefoil knots. The left-handed trefoil knot. The right-handed trefoil knot. The simplest chiral knot is the trefoil knot, which was shown
Chiral_knot
Species of flowering plant
different plants, such as Desmodium species that are also known as "tick-trefoil". The plant is native to Eastern Canada and throughout the Midwestern and
Hackelia_virginiana
Molecule whose structure resembles a knot
investigate the occurrence of knots in proteins and confirm the existence of the trefoil knot in CAB. Knotted DNA was found first by Liu et al. in 1981, in single-stranded
Molecular_knot
Species of plant
Acmispon neomexicanus or Greene's trefoil is a flowering plant in the family Fabaceae that grows exclusively in Arizona, New Mexico and northern Mexico
Acmispon_neomexicanus
British board game designer (1936–2019)
since the early 1970s. Tresham founded and ran games company Hartland Trefoil (founded 1971), a company well-known for its Civilization board game, until
Francis Tresham (game designer)
Francis_Tresham_(game_designer)
Large wooden trading dhow
sailing vessel. The ghanjah dhows had a curved prow with a characteristic trefoil ornament carved on top of the stem-head. They also had an ornately carved
Ghanjah
2000 radiation accident in Thailand
prompted the IAEA to re-evaluate the effectiveness of the radioactive hazard trefoil as a warning symbol. Although the symbol was displayed on the teletherapy
Samut Prakan radiation accident
Samut_Prakan_radiation_accident
TREFOIL
TREFOIL
TREFOIL
TREFOIL
Female
English
Variant spelling of English Marilyn, MERRILYN means "rebel-lake."
Boy/Male
Danish Teutonic Swedish
Boy/Male
Hindu
Milk, Nectar
Girl/Female
Gujarati, Hindu, Indian, Kannada, Malay, Tamil
God of Goddess Santoshi
Girl/Female
Biblical
My vineyard, lamb of the waters.
Boy/Male
Tamil
Ekaksha | à®à®•ாகà¯à®·à®¾
One eyed, Lord Shiva
Girl/Female
Muslim
Beauty
Boy/Male
American, Australian, British, Celtic, English, French, Gaelic, Indian, Irish, Jamaican, Scottish
Dweller in a Little Hollow; Small; Round Hill; Finnian's Servant; Log in Water to be Still and at Peace
Boy/Male
Tamil
God of wind, Brilliant, Shining
Girl/Female
Hindu, Indian
Intelligence
TREFOIL
TREFOIL
TREFOIL
TREFOIL
TREFOIL
n.
Any plant of the genus Trifolium, which includes the white clover, red clover, etc.; -- less properly, applied also to the nonesuch, or black medic. See Clover, and Medic.
n.
Sweet trefoil.
n.
A charge representing the clover leaf.
n.
The enrichment of an opening by means of foils, arranged in trefoils, quatrefoils, etc.; also, one of the ornaments. See Tracery.
n.
Any card of the suit of cards having a figure like the trefoil or clover leaf. (pl.) The suit of cards having such figure.
n.
A genus of leguminous herbs with densely spiked flowers and usually trifoliate leaves; trefoil. There are many species, all of which are called clover. See Clover.
a.
Having a bud or button, or a kind of trefoil, at the end; furnished with knobs or buttons.
n.
The space between the cusps in Gothic architecture; a rounded or leaflike ornament, in windows, niches, etc. A group of foils is called trefoil, quatrefoil, quinquefoil, etc., according to the number of arcs of which it is composed.
n.
The tendency to separate readily into parts by spurious articulations, as the pods of tick trefoil.
n.
An ornamental foliation consisting of three divisions, or foils.
n.
A kind of tick trefoil (Desmodium Canadense).
n.
An ornamental foliation having seven lobes. Cf. Cinquefoil, Quarterfoil, and Trefoil.
a.
Having a three-lobed extremity or extremities, as a cross; also, more rarely, ornamented with trefoils projecting from the edges, as a bearing.
n.
A species of time; -- so called from its resemblance in form to a trefoil.
a.
Same as Trefle.