Obs. rare. [a. F. turquin (= Sp. and Pg. turqui), ad. It. turchino (med.L. turchīnus) blue, f. Turco Turk.
Different reasons are assigned for the use of the adj. to designate ‘blue.’ In sense 1 the meaning of ‘Turkish’ may be preserved.]
1. A dark-green pumpkin.
After obs. F. pompon Turquin (Cotgr.).
1616. Surfl. & Markh., Country Farme, 193. Some of them are called Turquins, as those which haue a verie greene colour, and drawing somewhat toward a blacke.
2. A bluish-grey or slate-colored marble.
1811. Pinkerton, Petralogy, I. 412. A singular marble is still known to be found at Sitifi, in the north of Africa, being the proper turquin, because, like the turquois, it is supposed to be brought from a country subject to the Turks. It is of a bluish grey, or slate colour, with spots of siderite or hornblende.
