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glacis Line breaks: gla¦cis
Pronunciation: /ˈɡlasɪs/

Definition of glacis in English:

noun (plural same /ˈɡlasiːz/)

1A bank sloping down from a fort which exposes attackers to the defenders' missiles.
Example sentences
  • Built in the glacis style, there is no berm but a continuous 11 m. slope from the ditch bottom to the bank top.
  • Its purpose was that of a glacis of an ancient castle.
  • Abutting the glacis of the Acropolis at Athens is the great theatre of Dionysis.
2 (also glacis plate) A sloping piece of armour plate protecting part of a vehicle.
Example sentences
  • If it is pushed out of alignment by the glacis plate, it will detonate the mine underneath the belly of the AFV.
  • The glacis plate and nose of the hull have been upgraded with the addition of passive armour and the turret has been fitted with stand-off armour.
  • Other changes included adding a gun shield, a searchlight, an antipersonnel round, and belly armor that extended from the lower front glacis to about the middle of the vehicle.


Late 17th century: from French, from Old French glacier 'to slip', from glace 'ice', based on Latin glacies.

Words that rhyme with glacis

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