| 单词 | 无脊椎 |
| 释义 | 〔spineless〕Lacking a spinal column; invertebrate.无脊柱的；无脊椎的〔head〕The analogous part of an invertebrate organism.头状物：无脊椎生物中类似的部分〔invertebrate〕Lacking a backbone or spinal column; not vertebrate.无脊椎的：缺少脊骨或脊柱的；无脊椎的〔morphallaxis〕The regeneration of a body part by means of structural or cellular reorganization with only limited production of new cells, observed primarily in invertebrate organisms, such as certain lobsters.变形再生：某一身体部位通过构造或细胞重组织的方式再生，并产生有限新细胞，主要发生于无脊椎生物体，如龙虾〔mollusk〕Any of numerous chiefly marine invertebrates of the phylum Mollusca, typically having a soft unsegmented body, a mantle, and a protective calcareous shell and including the edible shellfish and the snails.软体动物：任一种无脊椎软体动物纲的海生动物，身体柔软且不分段，外有套膜，并具有保护性的钙质壳，包括可食用的有壳的水生动物和蜗牛〔sponge〕Any of numerous aquatic, chiefly marine invertebrate animals of the phylum Porifera, characteristically having a porous skeleton composed of fibrous material or siliceous or calcareous spicules and often forming irregularly shaped colonies attached to an underwater surface.海绵：一种水栖的海绵纲的无脊椎海生动物，其特征是具有同纤维物质或硅质或钙的针状物组成的多骨架，通常形成不规则的簇丛，贴在海底地面 |
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