- a tree, Anacardium occidentale, native to tropical America, having milky juice, simple, leathery leaves, and yellowish-pink flowers in open clusters.
- Also called cashew nut. the small, kidney-shaped, edible nut of this tree.
- a tropical American anacardiaceous evergreen tree, Anacardium occidentale, bearing kidney-shaped nuts that protrude from a fleshy receptacle
- Also called: cashew nut the edible nut of this tree
1703, a shortening of French acajou, from older Portuguese acajú from Tupi (Brazil) acajuba, name of the tree that produces the nut.