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

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

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..

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

Opercle :: Opercle (n.) An operculum.

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

Preopercular :: Preopercular (a.) Situated in front of the operculum; pertaining to the preoperculum.

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..

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

Operculum :: Operculum (n.) The lid closing the aperture of various species of shells, as the common whelk. See Illust. of Gastropoda..

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..

Suboperculum :: Subopercular (n.) The suboperculum.

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

Interpercular :: Interpercular (a.) Of or pertaining to the interoperculum.

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

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

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

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

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

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