Read Edit View history 壳质 qiàozhì chitin Origin Definitions Defs Strokes Stroke Words Sentences Sents 壳质 殼質 qiàozhì chitin chitin; the tough substance forming the outer skeleton of insects and crustaceans
壳质 殼質 qiàozhì chitin chitin; the tough substance forming the outer skeleton of insects and crustaceans