'Retirade' definitions:

Definition of 'Retirade'

From: GCIDE

Retirade \Ret`i*rade"\, n. [F.; cf. Sp. retirada retreat. See Retire.] (Fort.) A kind of retrenchment, as in the body of a bastion, which may be disputed inch by inch after the defenses are dismantled. It usually consists of two faces which make a reentering angle. [1913 Webster]