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Definition or meaning of the English word Operculum
The lid closing the aperture of various species of shells; as the common whelk. (n.). Any lid-shaped structure closing the aperture of a tube or shell. (n.). The principal opercular bone in the upper and posterior part of the gill cover. (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. (n.). Any lidlike or operculiform process or part; as; the opercula of a dental follicle. (n.). The lid of the urnlike capsule of mosses. (n.). The lid of a pitcherform leaf. (n.). |
