'Counterscarp' definitions:

Definition of 'Counterscarp'

From: GCIDE

Counterscarp \Coun"ter*scarp`\ (koun`t[~e]r*sk[aum]rp`) n. [Counter- + scarp: cf. F. contrescarpe.] (Fort.) The exterior slope or wall of the ditch; -- sometimes, the whole covered way, beyond the ditch, with its parapet and glacis; as, the enemy have lodged themselves on the counterscarp. [1913 Webster]