Longman Dictionary of Contemporary English homepage

Date: 1300-1400
Language: Old French
Origin: trefeuil, from Latin trifolium, from tri- 'three' + folium 'leaf'

trefoil

 noun
     
Related topics: Shapes, Patterns, Plants
tre‧foil [countable] technical
1HBP a type of small plant that has leaves which divide into three parts
2CF a pattern in the shape of these leaves
Definition from the Longman Dictionary of Contemporary English
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