Definition of: gesture

(jes′chər) noun
1. An expressive motion or action, as of the hand or hands in speaking, used for emphasis or to express some idea or emotion.
2. Such motions collectively, or the art of making them.
3. Something said or done as a mere concession to manners, courtesy, etc.
4. Obs. Deportment; posture.
—v. ·tured, ·tur·ing v.i. To make gestures; gesticulate.
—v.t. To express by gestures. [<Med. L gestura <gerere carry on, do]
—ges′tur·er noun Synonym (noun): gesticulation. Gesticulation often conveys the idea of jerky, sudden, or undignified motions; a gesture is any expressive movement of the limbs or body.