Reference meaning
operculum
Last updated
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
Source and scope
This definition is reproduced from Princeton WordNet 3.0, sense 01902368-n, under the WordNet 3.0 License. It has not yet received VocabularyBase editorial review. Read the source and license details.