Glacis
Pronunciation : Gla"cis
Part of Speech : n.
Etymology : [F. glacis; -- so named from its smoothness. See Glacier.]
Definition : Defn: A gentle slope, or a smooth, gently sloping bank; especially (Fort.), that slope of earth which inclines from the covered way toward the exterior ground or country (see Illust. of Ravelin).
Source : Webster's Unabridged Dictionary, 1913