apoptosis
Concise Oxford English Dictionary © 2008 Oxford University Press:
apoptosis /ˌapə(p)ˈtəʊsɪs/
▶noun Physiology the death of cells which occurs as a normal part of an organism's development.
– derivatives
apoptotic /-ˈtɒtɪk/ adjective.
apoptotic /-ˈtɒtɪk/ adjective.
– origin 1970s: from Gk apoptōsis ‘falling off’.
'apoptosis' also found in these Oxford entries:

