Definitions

from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. Any of various plants of the genera Trifolium, Lotus, and related genera of the pea family, having compound trifoliate leaves.
  • n. An ornament, symbol, or architectural form having the appearance of a trifoliate leaf.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. Any of several plants of the pea family, having compound, trifoliate leaves; especially one of the genus Trifolium.
  • n. A symbol having the shape of such leaves, especially when used as an architectural ornament.

from the GNU version of the Collaborative International Dictionary of English

  • 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. An ornamental foliation consisting of three divisions, or foils.
  • n. A charge representing the clover leaf.

from The Century Dictionary and Cyclopedia

  • n. In anatomy, the triangular area which forms the front part of a molar tooth; the protocone, paracone, and metacone lying at the angles. Same as trigon, 6.
  • n. A plant of the genus Trifolium; clover.
  • n. The third leaf put forth by a young plant.
  • n. An ornamental feathering or foliation used in medieval Pointed architecture in the heads of window-lights, tracery, panelings, etc., in which the spaces between the cusps represent a three-lobed figure.
  • n. In heraldry, a bearing supposed to represent a clover-leaf.
  • n. A bombycid moth, Lasiocampa trifolii, whose larva feeds on grass and clover in Europe. Also called grass-egger and clover-egger.
  • Characterized by the presence or prominence of a trefoil or trefoils; consisting of trefoils; thrice foliated.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. any of several Old World herbs of the genus Medicago having small flowers and trifoliate compound leaves
  • n. a plant of the genus Trifolium
  • n. an architectural ornament in the form of three arcs arranged in a circle

Etymologies

Middle English, from Anglo-Norman trifoil, from Latin trifolium : tri-, tri- + folium, leaf.
(American Heritage® Dictionary of the English Language, Fourth Edition)
From Anglo-Norman trifoil < Old French trefeuil < Latin trifolium < tri- + folium (leaf). (Wiktionary)

Examples

Comments

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  • a delicious sugar cookie with trifoliate form sold by the girl scouts

    February 26, 2013

  • See clubs

    January 27, 2008

  • trefoil

    November 3, 2007

  • In heraldry, a bearing conventionally representing a clover-leaf with its stalk; resembling a small cross with rounded leaves or lobes in place of the three upper arms.

    February 6, 2007