trefoil

noun
tre·​foil | \ ˈtrē-ˌfȯi(-ə)l How to pronounce trefoil (audio) , ˈtre- How to pronounce trefoil (audio) \

Definition of trefoil

1a : clover sense 1 broadly : any of several leguminous herbs (such as bird's-foot trefoil) with leaves that have or appear to have three leaflets
b : a trifoliolate leaf
2 : an ornament or symbol in the form of a stylized trifoliolate leaf

Illustration of trefoil

Illustration of trefoil

trefoil 2

Examples of trefoil in a Sentence

Recent Examples on the Web The three-crossing knot known as the trefoil is tricolorable. Quanta Magazine, "In a Single Measure, Invariants Capture the Essence of Math Objects," 2 June 2020 The steel-and-cement trefoil exploding from the earth resembles the Capitol from the Hunger Games films. Amy Tara Koch, chicagotribune.com, "Wineries north of Madrid start to come into their own as the ‘Sonoma of Spain’," 6 Dec. 2019 The steel-and-cement trefoil exploding from the earth resembles the Capitol from the Hunger Games films. Amy Tara Koch, chicagotribune.com, "Wineries north of Madrid start to come into their own as the ‘Sonoma of Spain’," 6 Dec. 2019 The steel-and-cement trefoil exploding from the earth resembles the Capitol from the Hunger Games films. Amy Tara Koch, chicagotribune.com, "Wineries north of Madrid start to come into their own as the ‘Sonoma of Spain’," 6 Dec. 2019 The steel-and-cement trefoil exploding from the earth resembles the Capitol from the Hunger Games films. Amy Tara Koch, chicagotribune.com, "Wineries north of Madrid start to come into their own as the ‘Sonoma of Spain’," 6 Dec. 2019 The steel-and-cement trefoil exploding from the earth resembles the Capitol from the Hunger Games films. Amy Tara Koch, chicagotribune.com, "Wineries north of Madrid start to come into their own as the ‘Sonoma of Spain’," 6 Dec. 2019 The steel-and-cement trefoil exploding from the earth resembles the Capitol from the Hunger Games films. Amy Tara Koch, chicagotribune.com, "Wineries north of Madrid start to come into their own as the ‘Sonoma of Spain’," 6 Dec. 2019 The steel-and-cement trefoil exploding from the earth resembles the Capitol from the Hunger Games films. Amy Tara Koch, chicagotribune.com, "Wineries north of Madrid start to come into their own as the ‘Sonoma of Spain’," 6 Dec. 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'trefoil.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of trefoil

15th century, in the meaning defined at sense 1a

History and Etymology for trefoil

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

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Time Traveler for trefoil

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The first known use of trefoil was in the 15th century

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Last Updated

15 Jun 2020

Cite this Entry

“Trefoil.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/trefoil. Accessed 14 Jul. 2020.

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More Definitions for trefoil

trefoil

noun
How to pronounce trefoil (audio) How to pronounce trefoil (audio)

English Language Learners Definition of trefoil

: 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

noun
tre·​foil | \ ˈtrē-ˌfȯil How to pronounce trefoil (audio) \

Kids Definition of trefoil

1 : a clover or related plant having leaves with three leaflets
2 : a fancy design with three leaflike parts

More from Merriam-Webster on trefoil

Rhyming Dictionary: Words that rhyme with trefoil

Nglish: Translation of trefoil for Spanish Speakers

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