The organic substance which forms the elytra and integuments of insects and the carapaces of crustacea.
| 单词 | θ30944 |
| 释义 | the world > animals > animal body > general parts > substance or secretion and excretion > [noun] > chitin (2) chitin1836 The organic substance which forms the elytra and integuments of insects and the carapaces of crustacea. Subcategories:— conversion into chitin (1) |
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