Com-plāin'ant, n.

n. [Fr. complaignant, p. pr. of complaindre. See supra.]

1. One who makes complaint. “Eager complainants.” Collier.
2. (Law.) (a.) One who commences a legal process by a complaint. (b.) The actor or party suing in equity, answering to the plaintiff at common law. Bouvier.

He shall forfeit one moiety to the use of the town, and the other moiety to the use of the complainant. Stat. of Mass.