plaintiff(redirected from complainant)
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Etymology: ME, plaintif, one who complains
(in law) a person who files a lawsuit initiating a legal action. The plaintiff complains or sues for remedial relief and names a complainant in various civil actions. In criminal actions the prosecution is the plaintiff, acting in behalf of the people of the jurisdiction.
plaintiffForensic medicine A person–eg, a Pt, who initiates a civil action to obtain restitution for injury caused by a negligent/allegedly negligent act
n an aggrieved party who brings a complaint to the civil court system.
n the party who sues in a personal legal action and who is so designated on the record.