trefoil
noun /ˈtrefɔɪl/, /ˈtriːfɔɪl/
/ˈtrefɔɪl/, /ˈtriːfɔɪl/
- (specialist) a plant whose leaves are divided into three similar parts, for example clover
车轴草;百脉根;三叶植物 - a decoration or a design like a trefoil leaf in shape
三叶形装饰(或图案)
词源Middle English: from Anglo-Norman French trifoil, from Latin trifolium, from tri- ‘three’ + folium ‘leaf’.