verb (used with object) 1.to add or restore
moisture to (something):
to moisturize one's skin with lotion; to moisturize air.
verb (used without object) 2.to make something
moist; counteract a dry condition with
moisture:
a skin cream that moisturizes while you sleep.
Also, especially British, mois·tur·ise.
Related forms de·mois·tur·ize, verb (used with object), de·mois·tur·ized, de·mois·tur·iz·ing.