trefoil

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noun tre·foil \ˈtrē-ˌfȯi(-ə)l, ˈtre-\

Definition of trefoil

  1. 1a :  clover 1; broadly :  any of several leguminous herbs (such as bird's-foot trefoil) with leaves that have or appear to have three leafletsb :  a trifoliolate leaf

  2. 2 :  an ornament or symbol in the form of a stylized trifoliolate leaf

Illustration of trefoil

Origin and Etymology of trefoil

Middle English, from Anglo-French, from Latin trifolium, from tri- + folium leaf — more at blade

Other Seed Plant Terms


TREFOIL Defined for English Language Learners

trefoil

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noun

Definition of trefoil for English Language Learners

  • : a plant (such as a clover) that has three leaves on each stem

  • : a decorative object or design that is shaped like a leaf with three parts


TREFOIL Defined for Kids

trefoil

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noun tre·foil \ˈtrē-ˌfȯil\

Definition of trefoil for Students

  1. 1 :  a clover or related plant having leaves with three leaflets

  2. 2 :  a fancy design with three leaflike parts



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