The organic substance which forms the elytra and integuments of insects and the carapaces of crustacea.
| 单词 | θ34365 |
| 释义 | the world > animals > invertebrates > phylum Arthropoda > class Insecta > parts of insects > [noun] > covering > chitin (1) chitin1836 The organic substance which forms the elytra and integuments of insects and the carapaces of crustacea. |
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