01 n. 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 man…
pl.
Rostella ((#))
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1.
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.