A rostellum.

Having a rostellum, or small beak; terminating in a beak.

plural of rostel

(zoology) Having the form of a rostellum, or small beak.

plural of rostellum

A small beak-like process or extension; a small rostrum. / (botany) A projecting part of the column in the flower of an orchid that separates the male stamen from the female gynoecium.

Pertaining to a rostellum.

plural of rostellum