大たい量りょう絶ぜつ滅めつMeaningsNoun1. extinction event; mass extinctionKanji used大large量quantity絶cut off滅perishComposed of大たい量りょうlarge quantity; massive (quantity); mass (e.g. mass production, mass transit, mass destruction)Na-adjective絶ぜつ滅めつextinction; extermination; eradication; stamping out; wiping outNoun