Definitions for ranunculus
Ranunculus, genus Ranunculus(noun)
annual, biennial or perennial herbs: buttercup; crowfoot
Any plant of the genus Ranunculus; the buttercup or crowfoot.
Origin: From ranunculus.
a genus of herbs, mostly with yellow flowers, including crowfoot, buttercups, and the cultivated ranunculi (R. Asiaticus, R. aconitifolius, etc.) in which the flowers are double and of various colors
U.S. National Library of Medicine
A plant genus of the family RANUNCULACEAE that contains protoanemonin, anemonin, and ranunculin.