RECONVENTION, civ. law. An action brought by a party who is defendant against the plaintiff before the same judge. Reconventio est petitio qua reus vicissim, quid ab actore petit, ex eadem, vel diversa causa. Voet, in tit. de Judiciis, n. 78; 4 N. S. 439. To entitle the defendant to institute a demand in reconvention, it is requisite that such demand, though different from the main action, be nevertheless necessarily connected with it and incidental to the same. Code of Pr. Lo. art. 375; 11 Lo. R. 309; 7 N. S. 282; 8 N. S. 516.