Other spellings (US) moisturizer Word parts moisturise + -er Pronunciation IPA (key): /ˈmɔɪstʃərʌɪzə/ Audio (UK)(file) Noun Singular moisturiser Plural moisturisers (countable) A moisturiser is a liquid or lotion that can be put on an object to make it wet or moist. I put moisturiser on my skin every morning to keep it soft. The oil acts as a moisturiser to the wood.Wikiwand - on Seamless Wikipedia browsing. On steroids.Remove ads