IPA: /kəʊˈzmɛtɪk/
KK: /kɑˈzmɛtɪk/
Related to beauty or decoration, especially for the face and body, rather than for practical use. It can also refer to changes that are superficial and do not affect the main function or quality of something.
She applied a cosmetic cream to enhance her skin's appearance.
A product applied to the body to enhance beauty or appearance, such as makeup or skin cream.
She applied a cosmetic to her face before going out.
Cosmetic → It is formed from "kosmetikos" (from Greek, meaning skilled in adornment) and the suffix "-ic" (meaning pertaining to). The word "cosmetic" refers to products or practices that pertain to beautifying or adorning the body.
Think of someone skilled in 'adorning' ('kosmetikos') — that's why cosmetic relates to beauty products.