Extinction
Noun, する verb, and の adjective
ぜつめつ
全ての種の鯨が絶滅の危機に瀕している訳ではない。
Not all species of whales are endangered.
Extinction where everything is destroyed is destruction. It is extinction.
This is a jukugo word that uses the on'yomi readings of the kanji. You should be able to read this on your own.