ROSTELLIFORM
Ros*tel"li*form, a.
Defn: Having the form of a rostellum, or small beak.
ROSTELLUM
Ros*tel"lum, n.; pl. Rostella. Etym: [L. See Rostel.]
Defn: 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.
ROSTER
Ros"ter, n. Etym: [Perhaps a corruption of register; or cf. roll.]
(Mil.)
Defn: A register or roll showing the order in which officers, enlisted men, companies, or regiments are called on to serve.
ROSTRA
Ros"tra, n. pl.
Defn: See Rostrum, 2.
ROSTRAL Ros"tral, a. Etym: [L. rostralis, fr. rostrum a beak; cf. F. rostral.]
Defn: 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.
[Monuments] adorned with rostral crowns and naval ornaments. Addison.