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Rostellar
- Pertaining to a rostellum.
Rostellate
- Having a rostellum, or small beak; terminating in a beak.
Rostelliform
- Having the form of a rostellum, or small beak.
Rostellum
- 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.
Rostral
- Of or pertaining to the beak or snout of an animal, or the beak of a ship; resembling a rostrum, esp., the rostra at Rome, or their decorations.
Rostrated
- Having a process resembling the beak of a bird; beaked; rostellate.
Rostrifera
- A division of pectinibranchiate gastropods, having the head prolonged into a snout which is not retractile.
Rostriform
- Having the form of a beak.
Rostrulum
- A little rostrum, or beak, as of an insect.
Rosulate
- Arranged in little roselike clusters; -- said of leaves and bracts.