- a small tree or shrub belonging to the genus Acacia, of the mimosa family, having clusters of small yellow flowers.
- any of several other plants, as the locust tree.
- gum arabic.
- any shrub or tree of the tropical and subtropical leguminous genus Acacia, having compound or reduced leaves and small yellow or white flowers in dense inflorescences
- false acacia another name for locust (def. 2), locust (def. 3)
- gum acacia another name for gum arabic
