‖ estanciero|estanθiˈero| [Sp., f.estancia: see prec.] The keeper of an estancia; a cattle-farmer (in Spanish America). 1845Darwin Voy.Nat. viii. (1873) 149 An estanciero told me.1890G. Stables in Boy's Own Paper 1 Feb. 278/1 We were old estancieros.