Personate

(pür's'n-at.) [From L. persona. ] (Bot.) A term applied to a monopetalous corolla, the limb of which is unequally divided: the upper division or lip being arched, the lower prominent and pre ed against it, so that when compre ed the whole resembles the mouth of a gaping animal; as the corolla of Antirrhinum. [s. 700]