Definition of operculum

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

Lern More About Operculum

Operculiferous :: Operculiferous (a.) Bearing an operculum.
Onycha :: Onycha (n.) An ingredient of the Mosaic incense, probably the operculum of some kind of strombus..
Operculum :: Operculum (n.) The lid of the urnlike capsule of mosses.
Valvata :: Valvata (n.) A genus of small spiral fresh-water gastropods having an operculum.
Preopercular :: Preopercular (n.) The preoperculum.
Operculum :: Operculum (n.) Any lid-shaped structure closing the aperture of a tube or shell.
Operculigenous :: Operculigenous (a.) Producing an operculum; -- said of the foot, or part of the foot, of certain mollusks..
Paucispiral :: Paucispiral (a.) Having few spirals, or whorls; as, a paucispiral operculum or shell..
Opercula :: Opercula (n. pl.) See Operculum.
Oparcular :: Oparcular (a.) Of, pertaining to, or like, an operculum..
Preopercular :: Preopercular (a.) Situated in front of the operculum; pertaining to the preoperculum.
Praeoperculum :: Praeoperculum (n.) Same as Preoperculum.
Operculums :: Operculums (pl. ) of Operculu.
Inoperculate :: Inoperculate (a.) Having no operculum; -- said of certain gastropod shells.
Interpercular :: Interpercular (a.) Of or pertaining to the interoperculum.
Tergum :: Tergum (n.) One of the dorsal plates of the operculum of a cirriped.
Suborbicular :: Suboperculum (n.) The lower opercular bone in fishes.
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..
Operculum :: Operculum (n.) The lid of a pitcherform leaf.
Nucleus :: Nucleus (n.) The central part around which additional growths are added, as of an operculum..
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