The Collaborative International Dictionary
Quadrifoliate
Quadrifoil \Quad"ri*foil\, Quadrifoliate \Quad`ri*fo"li*ate\, a. [Quadri- + L. folium leaf.] (Bot.) Four-leaved; having the leaves in whorls of four.
Wiktionary
quadrifoliate
a. (context botany English) Having four leaf or leaflets.