rare. [f. Gr. τρι-, TRI- + -μαχία, μάχη fight, battle, combat.] a. A series of three battles. b. A contest among three (Cent. Dict. Suppl., 1909).
1887. F. M. Crawford, Saracinesca, i. Count Bismarck had only just brought to a successful termination the first part of his trimachy; Sadowa and Sedan were yet unfought.