acacia/əˈkeɪʃə; ə`keʃə/ nany of several trees with yellow or white flowers, esp one from which gum arabic is obtained 金合欢树（任何一种金合欢属的树, 开黄花或白花, 尤指可提取阿拉伯树胶者）.
牛津英汉双解词典