IPA: //ˈmɔɪstʃəraɪzər//
KK: /ˈmɔɪstʃəˌraɪzər/
A cream or lotion used on the skin to keep it soft and prevent it from becoming dry.
She applied a moisturizer to her face every morning.
Moisturizer → It is formed from "moist" (from Old French *moiste*, meaning slightly wet or damp) and "-urizer" (a suffix indicating an agent that performs a function). The word "moisturizer" refers to a product that adds moisture to the skin.
Think of something that makes your skin 'damp' or 'slightly wet' — that's what a moisturizer does.