Dictionary.com

insulation

[ in-suh-ley-shuhn, ins-yuh- ]
/ ˌɪn səˈleɪ ʃən, ˌɪns yə- /
Save This Word!

noun

material used for insulating.
the act of insulating.
the state of being insulated.

QUIZZES

QUIZ YOURSELF ON “ITS” VS. “IT’S”!

Apostrophes can be tricky; prove you know the difference between it’s and its in this crafty quiz!
Question 1 of 12
On the farm, the feed for chicks is significantly different from the roosters’; ______ not even comparable.

Origin of insulation

First recorded in 1790–1800; insulate + -ion
pre·in·su·la·tion, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

British Dictionary definitions for insulation

insulation
/ (ˌɪnsjʊˈleɪʃən) /

noun

Also called: insulant (ˈɪnsjʊlənt) material used to insulate a body, device, or region
the act or process of insulating
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
Hate Typos? Get Grammar Coach