[ gley-shee-eyt, -see- ]
/ ˈgleɪ ʃiˌeɪt, -si- /

verb (used with object), gla·ci·at·ed, gla·ci·at·ing.

to cover with ice or glaciers.
to affect by glacial action.

verb (used without object), gla·ci·at·ed, gla·ci·at·ing.

to become frozen or covered with ice or glaciers.

Origin of glaciate

1615–25; < Latin glaciātus (past participle of glaciāre to freeze), equivalent to glaci(ēs) ice + -ātus -ate1
Related formsgla·ci·a·tion, nounun·gla·ci·at·ed, adjective Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for unglaciated

British Dictionary definitions for unglaciated


/ (ˈɡleɪsɪˌeɪt) /


to cover or become covered with glaciers or masses of ice
(tr) to subject to the effects of glaciers, such as denudation and erosion
Derived Formsglaciation, noun
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

Word Origin and History for unglaciated



1620s, "to freeze;" 1865 in reference to glaciers, from Latin glaciatus, past participle of glaciare "to turn to ice," from glacies (see glacial).

Online Etymology Dictionary, © 2010 Douglas Harper