[ 'glasɪs , -si ]
■ noun ( plural same -sɪz , -si:z ) a bank sloping down from a fort which exposes attackers to the defenders' missiles.
Origin
C17: from Fr., from OFr. glacier 'to slip'.
GLACIS
Meaning of GLACIS in English
Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004