trifoliolate

(trī fōlē ə lāt′)

adjective

divided into three leaflets, as the leaf of a clover

Origin: < tri- + ModL foliolum, dim. of L folium, a leaf (see foil) + -ate

See trifoliolate in American Heritage Dictionary 4

adjective
Having three leaflets, as a leaf of clover or string bean.
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