The formation of rings or ring-like divisions; concr. a ring-like structure, a ring.
| 单词 | θ33502 |
| 释义 | the world > animals > invertebrates > subkingdom Metazoa > grade Triploblastica or Coelomata > [noun] > annulose animals > structure of (2) annulation1829 The formation of rings or ring-like divisions; concr. a ring-like structure, a ring. annulism1841 Annulate structure. |
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