Rhī-năn'thus, n.

Rhī-năn'thus, n. [Gr. ῥίς, ῥινός, nose, snout, and ἄνθος, flower.] (Bot.) A genus of annual plants having yellow flowers; yellow-rattle;—so called from the beaked upper lip of the corolla, resembling a snout, in some species formerly included in this genus. Gray.