大たい絶ぜつ滅めつ

noun

mass extinction; extinction event

Refers to a widespread and rapid decrease in biodiversity on Earth, such as the Cretaceous–Paleogene extinction event. Often used in scientific or educational contexts.

See also: 大量絶滅

• 恐きょう竜りゅうの絶ぜつ滅めつは、約やく6600万まん年ねん前まえの大たい絶ぜつ滅めつの一いち例れいです。

  The extinction of the dinosaurs is one example of a mass extinction about 66 million years ago.

• 現げん在ざい、多おおくの科か学がく者しゃが第だい六ろくの大たい絶ぜつ滅めつが進しん行こう中ちゅうだと警けい告こくしている。

  Many scientists now warn that a sixth mass extinction is underway.