What is the meaning of Glacis?

A gentle incline.

1. A gentle sloping landform created by the deposition or erosion of material.
2. 2. A gentle incline in front of a fortification which protects it from cannon fire and exposes attackers to more effective return fire from defenders.

      A gentle sloping landform created by the deposition or erosion of material.

      2. A gentle incline in front of a fortification which protects it from cannon fire and exposes attackers to more effective return fire from defenders.

         A gentle incline in front of a fortification which protects it from cannon fire and exposes attackers to more effective return fire from defenders.

         In full glacis plate: the angled armour plate on the front of a tank which protects it from projectiles; also , such a plate protecting an opening (for example, on a ship).

         A device for sorting mail which slides parcels across a sloped surface.

         second-person singular present subjunctive of glaçar

         past of glacar

         glacis

         Source: wiktionary.org