Chian

a.
  1. Of or pertaining to Chios, an island in the Ægean Sea.
  2. Chian earth ,
    a dense, compact kind of earth, from Chios, used anciently as an astringent and a cosmetic.
    Chian turpentine ,
    a fragrant, almost transparent turpentine, obtained from the Pistacia Terebinthus.