cash·ew 
(kăsh, kə-sh)
(kăsh, kə-sh)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.]
cashewcashew nut attached to a cashew apple (red)
Anacardium occidentale