Zoology. Any special structure or set of parts surrounding the mouth or oral opening in various invertebrates, such as echinoderms, coelenterates…
| 单词 | θ31432 |
| 释义 | the world > animals > invertebrates > bodies or parts > [noun] > equivalent of the mouth > part surrounding (1) peristome1875 Zoology. Any special structure or set of parts surrounding the mouth or oral opening in various invertebrates, such as echinoderms, coelenterates… |
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