vestigial background

vestigial

/vɛˈstɪdʒəl/

Illustration vestigial - Image 1

noun

痕跡器官

A small, degenerate, or imperfectly developed part or organ which has been more fully developed in some past generation.

Examples :

"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。

anatomy biology physiology organ part science

Illustration vestigial - Image 1

adjective

痕跡の, 名残の

Of or pertaining to a vestige or remnant; like a trace from the past.

Examples :

"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。

biology anatomy history past

Illustration vestigial - Image 1

adjective

痕跡の、退化した

Not fully developed in mature animals.

Examples :

"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。

biology anatomy physiology organism