(1):
(a.) Of or pertaining to the white races of mankind, of whom the people about Mount Caucasus were formerly taken as the type.
(2):
(a.) Of or pertaining to the Caucasus, a mountainous region between the Black and Caspian seas.
(3):
(n.) A member of any of the white races of mankind.
(4):
(n.) A native or inhabitant of the Caucasus, esp. a Circassian or Georgian.