Chi'an adjective [ Latin chius , from Chios the island Chios, Greek ....] Of or pertaining to Chios, an island in the Ægean Sea. Chian earth , a dense, compact kind of earth, from Chios, used anciently as an astringent and a cosmetic. -- Chian turpentine , a... Found on http://www.encyclo.co.uk/webster/C/63