trīˈfōlēəm noun
Etymology: New Latin, from Latin, three-leaved grass, trefoil, from tri- + folium leaf — more at blade
1. capitalized : a very large genus of herbs (family Leguminosae) comprising the common clovers, being widely distributed in temperate regions, and having digitately or pinnately trifoliolate leaves and red, purple, pink, or white chiefly globose heads of flowers with a persistent corolla followed by a membranous and indehiscent pod
2. -s : any plant of the genus Trifolium