Zoology. The calcareous, horny, or fibrous plate secreted by some gastropod molluscs, esp. prosobranchs, which serves to close the aperture of…
| 单词 | θ33723 |
| 释义 | the world > animals > invertebrates > phylum Arthropoda > class Crustacea > [noun] > subclass Entomostraca > order Cirripedia > member of > parts of > flap or lid of shell (3) operculum1681 Zoology. The calcareous, horny, or fibrous plate secreted by some gastropod molluscs, esp. prosobranchs, which serves to close the aperture of… opercle1808 Zoology and Botany. An operculum. opercule1836 An operculum. |
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