[ 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.

Nearby words

  1. glacial periods,
  2. glacial striation,
  3. glacial valley,
  4. glacialist,
  5. glacially,
  6. glaciation,
  7. glacier,
  8. glacier bay,
  9. glacier cream,
  10. glacier lily

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

British Dictionary definitions for glaciate


/ (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 glaciate



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