| NOUN | animal | operculum | a hard flap serving as a cover for (a) the gill slits in fishes or (b) the opening of the shell in certain gastropods when the body is retracted |
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| Meaning | A hard flap serving as a cover for (a) the gill slits in fishes or (b) the opening of the shell in certain gastropods when the body is retracted. | |
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| Broader | plate | Any flat platelike body ... / body structure or part |
| Spanish | opérculo | |
| Catalan | opercle | |
| Adjectives | operculate, operculated | having an operculum |
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