cosmetic
US /kɑːzˈmet̬.ɪk/
UK /kɑːzˈmet̬.ɪk/

1.
a preparation applied to the body, especially the face, to improve its appearance
:
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She applied her favorite cosmetic before going out.
•
The store has a wide range of natural cosmetics.
1.
relating to or concerned with beauty or the enhancement of beauty
:
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She underwent cosmetic surgery to improve her appearance.
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The changes were purely cosmetic and didn't address the core problem.