Definition of operculum

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Operculum (n.) Any lidlike or operculiform process or part; as, the opercula of a dental follicle..

Lern More About Operculum

Praeoperculum :: Praeoperculum (n.) Same as Preoperculum.
Interoperculum :: Interoperculum (n.) The postero-inferior opercular bone, in fishes..
Tergum :: Tergum (n.) One of the dorsal plates of the operculum of a cirriped.
Operculum :: Operculum (n.) The principal opercular bone in the upper and posterior part of the gill cover.
Opercular :: Opercular (n.) The principal opercular bone or operculum of fishes.
Rostellum :: Rostellum (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 many mosses; the rostellum on the head of a tapeworm..
Operculigenous :: Operculigenous (a.) Producing an operculum; -- said of the foot, or part of the foot, of certain mollusks..
Turbo :: Turbo (n.) Any one of numerous marine gastropods of the genus Turbo or family Turbinidae, usually having a turbinate shell, pearly on the inside, and a calcareous operculum..
Unoperculated :: Unoperculated (a.) Destitute of an operculum, or cover..
Operculum :: Operculum (n.) The lid closing the aperture of various species of shells, as the common whelk. See Illust. of Gastropoda..
Suboperculum :: Subopercular (n.) The suboperculum.
Oparcular :: Oparcular (a.) Of, pertaining to, or like, an operculum..
Preopercular :: Preopercular (a.) Situated in front of the operculum; pertaining to the preoperculum.
Operculum :: Operculum (n.) The lid of a pitcherform leaf.
Paucispiral :: Paucispiral (a.) Having few spirals, or whorls; as, a paucispiral operculum or shell..
Preopercular :: Preopercular (n.) The preoperculum.
Serpula :: Serpula (n.) Any one of numerous species of tubicolous annelids of the genus Serpula and allied genera of the family Serpulidae. They secrete a calcareous tube, which is usually irregularly contorted, but is sometimes spirally coiled. The worm has a wreath of plumelike and often bright-colored gills around its head, and usually an operculum to close the aperture of its tube when it retracts..
Operculum :: Operculum (n.) The lid of the urnlike capsule of mosses.
Operculums :: Operculums (pl. ) of Operculu.
Suborbicular :: Suboperculum (n.) The lower opercular bone in fishes.
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