n. [ So called from Prof. Anker of Austria: cf. F. ankérite, G. ankerit. ] (Min.) A mineral closely related to dolomite, but containing iron. [ 1913 Webster ]
n. [ Gr. ke`ras, horn. ] A compound in which tar or asphaltum combined with animal or vegetable oils is vulcanized by sulphur, the product closely resembling rubber; -- used principally as an insulating material in telegraphy. Knight. [ 1913 Webster ]
(n) a waxy mineral that is a mixture of hydrocarbons and occurs in association with petroleum; some varieties are used in making ceresin and candles, Syn. earth wax, mineral wax, ozocerite, ozokerite