acacia
/əˈkeɪʃə/(亦作 acacia tree)
noun
1- a tree or shrub of warm climates which bears spikes or clusters of yellow or white flowers and is typically thorny. Also called WATTLE1, especially in Australia.金合欢属植物; 刺槐（亦称WATTLE1, 尤其在澳大利亚作此称）。
1.1
- Genus Acacia, family Leguminosae: numerous species, including A.senegal, which yields gum arabic.金合欢属, 豆科：多种, 包括阿拉伯胶树, 产阿拉伯树胶。
词源
late Middle English: via Latin from Greek akakia.