Definition of glacis in English:

glacis

Syllabification: gla·cis
Pronunciation: /ˈglāsis, ˈglas-
 
/

noun (plural same or glacises)

  • A gently sloping bank, in particular one that slopes down from a fort, exposing attackers to the defenders' missiles.
    More 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.

Origin

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

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Pronunciation: ˌkɒlərəˈtjʊərə
noun
elaborate ornamentation of a vocal melody