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...

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

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

Scutum :: Scutum (n.) One of the two lower valves of the operculum of a barnacle.

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..

Onycha :: Onycha (n.) An ingredient of the Mosaic incense, probably the operculum of some kind of strombus..

Suboperculum :: Subopercular (n.) The suboperculum.

Operculum :: Operculum (n.) The principal opercular bone in the upper and posterior part of the gill cover.

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..

Tergum :: Tergum (n.) One of the dorsal plates of the operculum of a cirriped.

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

Nucleus :: Nucleus (n.) The central part around which additional growths are added, as of an operculum..

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..

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..

Operculum :: Operculum (n.) The lid of the urnlike capsule of mosses.

Operculums :: Operculums (pl. ) of Operculu.

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

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

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..

Suborbicular :: Suboperculum (n.) The lower opercular bone in fishes.

Operculum :: Operculum (n.) The lid of a pitcherform leaf.

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