柯林斯詞典chitin /?ka?t?n/ 1. N a polysaccharide that is the principal component of the exoskeletons of arthropods and of the bodies of fungi 幾丁質(zhì) 返回 chitin劍橋詞典a hard substance in the outer shell of insects and animals such as shrimp and lobster , and in the cell walls of some fungi 殼質(zhì)（某些生物體表堅(jiān)硬的保護(hù)層，如昆蟲、蝦，龍蝦的外殼和部分真菌的細(xì)胞壁） 返回 chitin