verb (used with object), mois·tur·ized, mois·tur·iz·ing.
  1. to add or restore moisture to (something): to moisturize one's skin with lotion; to moisturize air.
verb (used without object), mois·tur·ized, mois·tur·iz·ing.
  1. to make something moist; counteract a dry condition with moisture: a skin cream that moisturizes while you sleep.
Also especially British, mois·tur·ise.

Origin of moisturize

First recorded in 1940–45; moisture + -ize
Related formsde·mois·tur·ize, verb (used with object), de·mois·tur·ized, de·mois·tur·iz·ing. Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for moisturise



  1. (tr) to add or restore moisture to (the air, the skin, etc)
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 moisturise



1945, from moisture + -ize. Related: Moisturized; moisturizing.

Online Etymology Dictionary, © 2010 Douglas Harper