also: アポプトーシス
noun
Scientific term in physiology for programmed cell death.
アポトーシスは、細胞が自ら死ぬ仕組みです。
Apoptosis is a mechanism by which cells die on their own.
Necrosis is unprogrammed cell death due to injury, while apoptosis is programmed cell death.
From English 'apoptosis', ultimately from Ancient Greek 'apoptōsis' (a falling off).