角质层 jiǎozhìcéng cuticle Definitions Defs Origin Strokes Stroke Words Sentences Sents 角质 角質 jiǎozhì keratin horny substance such as keratin or cutin found in the outer layers of many animals and plants; protects internal tissues with its tough texture层 層 céng noun layer A physical sheet, thickness of material, or stratum covering a surface
