[ gley-sis, glas-is ]
/ ˈgleɪ sɪs, ˈglæs ɪs /
Save This Word!

noun, plural gla·cis [gley-seez, -siz, glas-eez, -iz], /ˈgleɪ siz, -sɪz, ˈglæs iz, -ɪz/, gla·cis·es.
a gentle slope.
Fortification. a bank of earth in front of the counterscarp or covered way of a fort, having an easy slope toward the field or open country.
In effect, this quiz will prove whether or not you have the skills to know the difference between “affect” and “effect.”
Question 1 of 7
The rainy weather could not ________ my elated spirits on my graduation day.
Meet Grammar CoachWrite or paste your essay, email, or story into Grammar Coach and get grammar helpImprove Your Writing
Meet Grammar CoachImprove Your Writing
Write or paste your essay, email, or story into Grammar Coach and get grammar help

Origin of glacis

1665–75; <Middle French; akin to Old French glacier to slide; compare Latin glaciāre to make into ice; see glacé
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022

How to use glacis in a sentence

British Dictionary definitions for glacis

/ (ˈɡlæsɪs, ˈɡlæsɪ, ˈɡleɪ-) /

noun plural -ises or -is (-iːz, -ɪz)
a slight incline; slope
an open slope in front of a fortified place
short for glacis plate

Word Origin for glacis

C17: from French, from Old French glacier to freeze, slip, from Latin glaciāre, from glaciēs ice
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012