Meaning of "cashew nuts"

an edible kidney-shaped nut, rich in oil and protein, which is roasted and shelled before it can be eaten. Oil is extracted from the shells and used as a lubricant and insecticide and in the production of plastics.
a bushy tropical American tree related to the mango, bearing cashew nuts singly at the tip of each swollen fruit.

cash·ew

kăsh′o͞o, kə-sho͞o′
cash·ew  (kăsh′o͞o, kə-sho͞o′)
n.
1. A tropical American evergreen tree (Anacardium occidentale) widely cultivated for its edible seeds.
2. The kidney-shaped seed of this tree.

[Probably Portuguese acajú, from Tupí, from cajú, yellow fruit, acidic.]

cashew

ˈkæʃuː; kæˈʃuː
cashew (ˈkæʃuː; kæˈʃuː)
n
1. (Plants) a tropical American anacardiaceous evergreen tree, Anacardium occidentale, bearing kidney-shaped nuts that protrude from a fleshy receptacle
2. (Plants) Also called: cashew nut the edible nut of this tree
[C18: from Portuguese cajú, from Tupi acajú]

cash•ew

(ˈkæʃ u, kəˈʃu)
cash•ew (ˈkæʃ u, kəˈʃu) n.
1. a tropical American tree, Anacardiumoccidentale, with leathery leaves and yellowish pink flowers in open clusters.
2. Also called cash′ew nut`. the small, kidney-shaped, edible nut of this tree.
[1695–1705; < Portuguese cajú]