Thanks for using this online dictionary, we have been helping millions of people improve their use of the english language with its free online services. English definition of operculum is as below...

Inoperculate :: Inoperculate (a.) Having no operculum; -- said of certain gastropod shells.

Operculated :: Operculated (a.) Having an operculum, or an apparatus for protecting the gills; -- said of shells and of fishes..

Paucispiral :: Paucispiral (a.) Having few spirals, or whorls; as, a paucispiral operculum or shell..

Turritella :: Turritella (n.) Any spiral marine gastropod belonging to Turritella and allied genera. These mollusks have an elongated, turreted shell, composed of many whorls. They have a rounded aperture, and a horny multispiral operculum..

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..

Operculums :: Operculums (pl. ) of Operculu.

Suboperculum :: Subopercular (n.) The suboperculum.

Valvata :: Valvata (n.) A genus of small spiral fresh-water gastropods having an operculum.

Operculum :: Operculum (n.) The fold of integument, usually supported by bony plates, which protects the gills of most fishes and some amphibians; the gill cover; the gill lid..

Preopercular :: Preopercular (n.) The preoperculum.

Eyestone :: Eyestone (n.) A small, lenticular, calcareous body, esp. an operculum of a small marine shell of the family Turbinidae, used to remove a foreign substance from the eye. It is put into the inner corner of the eye under the lid, and allowed to work its way out at the outer corner, bringing with it the substance..

Opercle :: Opercle (n.) An operculum.

Preoperculum :: Preoperculum (n.) The anterior opercular bone in fishes.

Operculiferous :: Operculiferous (a.) Bearing an operculum.

Operculigenous :: Operculigenous (a.) Producing an operculum; -- said of the foot, or part of the foot, of certain mollusks..

Interoperculum :: Interoperculum (n.) The postero-inferior opercular bone, in fishes..

Praeoperculum :: Praeoperculum (n.) Same as Preoperculum.

Opercula :: Opercula (n. pl.) See Operculum.

Operculum :: Operculum (n.) Any lid-shaped structure closing the aperture of a tube or shell.

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..

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