noun🔗Share痕跡器官A small, degenerate, or imperfectly developed part or organ which has been more fully developed in some past generation."The human appendix is often cited as a vestigial organ, a remnant of our herbivorous ancestors. "ヒトの虫垂は、草食性の祖先の痕跡器官としてよく引用されます。anatomybiologyphysiologyorganpartscienceChat with AIVocabulary GamePractice Reading
adjective🔗Share痕跡の, 名残のOf or pertaining to a vestige or remnant; like a trace from the past."The human appendix is considered a vestigial organ, a remnant from our evolutionary past when it was used to digest cellulose. "人間の虫垂は、かつてセルロースを消化するために使用されていた進化の過去からの名残である、痕跡器官と考えられています。biologyanatomyhistorypastChat with AIVocabulary GamePractice Reading
adjective🔗Share痕跡の、退化したNot fully developed in mature animals."The human tailbone is a vestigial structure, a remnant from our ancestors that once had tails. "人間の尾骨は、かつて尾を持っていた私たちの祖先からの痕跡構造です。biologyanatomyphysiologyorganismChat with AIVocabulary GamePractice Reading
