noun a member of any of the white races of mankind.
2. caucasian ·noun a native or inhabitant of the caucasus, ·esp. a circassian or georgian.
3. caucasian ·adj of or pertaining to the caucasus, a mountainous region between the black and caspian seas.
4. caucasian ·adj of or pertaining to the white races of mankind, of whom the people about mount caucasus were formerly taken as the type.