n.1. a movement, such as the clenching of a fist, the waving of a hand, or the stamping of a foot, that communicates a particular meaning or indicates the individual’s emotional state or attitude. Gestures can enhance, clarify, or moderate the meaning of verbal communication. See emblem; iconic gesture. See also nonverbal behavior. 2. a statement or act, usually symbolic, that is intended to influence the attitudes of others (as in a gesture of goodwill). —gesturaladj.