adjective

1. beautifying or designed to beautify the complexion, hair, etc.
2. for improving the appearance by the removal or correction of blemishes or deformities, esp. of the face
3. of or for improving the appearance without making any basic changes, as to conceal defects, make more acceptable, etc.; also, superficial

Etymology: Gr kosmētikos, skilled in arranging < kosmein, to arrange, adorn < kosmos, order

noun

1. any cosmetic preparation for the skin, hair, etc., as blusher and powder
2. anything cosmetic: often used in pl.