Definition: Operculum Meaning in English to Urdu is خول, as written in Urdu and Khoal, as written in Roman Urdu. Accurate Operculum Translation, Synonyms and Antonyms.
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. The lid of a pitcherform leaf.
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. The lid of the urnlike capsule of mosses.
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. Any lidlike or operculiform process or part.
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. 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.
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. The principal opercular bone in the upper and posterior part of the gill cover.
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. The lid closing the aperture of various species of shells, as the common whelk. See Illust. of Gastropoda.
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. Any lid-shaped structure closing the aperture of a tube or shell.
خول
Operculum