n. [ L. rostellum, dim. of rostrum a beak: cf. F. rostelle. ] same as Rostellum. [ 1913 Webster ]

a. Pertaining to a rostellum. [ 1913 Webster ]

a. [ NL. rostellatus. ] Having a rostellum, or small beak; terminating in a beak. [ 1913 Webster ]

a. Having the form of a rostellum, or small beak. [ 1913 Webster ]

‖n.; pl. Rostella [ L. See Rostel. ] A small beaklike process or extension of some part; a small rostrum; as, the rostellum of the stigma of violets, or of the operculum of many mosses; the rostellum on the head of a tapeworm. [ 1913 Webster ]