Webster's Revised Unabridged Dictionary · 1913

Ranunculaceous

Ranunculaceous (rȧ*nun`ku*lā"shus) , adjective

[See Ranunculus.]

(Botany) Of or pertaining to a natural order of plants (Ranunculaceae), of which the buttercup is the type, and which includes also the virgin's bower, the monkshood, larkspur, anemone, meadow rue, and peony.