integumentWiktionary 原文英美/ɪnˈtɛɡ.jʊ.mənt/词源链原始词根原始印欧语Proto-Indo-European约前 4500–前 2500 年*(s)teg- (cover)拉丁语Latin约前 75–公元 3 世纪integumentum‘a covering’↓ 借入英语Englishintegument词源说明Borrowed from Latin integumentum (“a covering”).释义名词noun1A shell or other outer protective layer.2(biology) An outer protective covering such as the feathers or skin of an animal, a rind or shell.3(botany) The outer layer of an ovule