n. The angled armour plate on the front of a tank; glacis plate.
n. A device for sorting mail which slides parcels across a sloped surface.
the GNU version of the Collaborative International Dictionary of English
n. 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).
The Century Dictionary and Cyclopedia
n. A gentle slope or sloping bank.
n. An easy slope, like that of the shingle piled on the shore by the action of the tides and waves, less steep than a talus.
Word Usage
"The glacis is the smooth ground outside the ditch."