desquamate
Concise Oxford English Dictionary © 2008 Oxford University Press:
desquamate /ˈdɛskwəmeɪt/
▶verb (of a layer of cells) come off in scales or flakes.
– derivatives
desquamation noun,
desquamative /-ˈskwamətɪv/ adjective.
desquamation noun,
desquamative /-ˈskwamətɪv/ adjective.
– origin C18 (earlier (ME) as desquamation): from L. desquamat-, desquamare ‘remove the scales from’.
'desquamate' also found in these Oxford entries:

