benzoin

benzoin
[ˈbɛnzəʊɪn]
noun
[mass noun]
  1. (亦作 gum benzoin)a fragrant gum resin obtained from a tropical East Asian tree, used in medicines, perfumes, and incense
    安息香。 亦称 gum benjamin
  2. This is obtained from several species of the genus Styrax (family Styracaceae), in particular S. benzoin
    从安息香科安息香属数种,尤从安息香中提取
  3. (Chemistry)a white crystalline aromatic ketone present in this resin
    (化)安息香胶
  4. Alternative name: 2-hydroxy-1,2-diphenylethanone; Chem. formula: C6H5CHOHCOC6H5
    又名:苯偶姻,二苯乙醇酮;化学分子式C6H5CHOHCOC6H5
语源
  1. mid 16th cent.: from French benjoin, based on Arabic lubānjāwī 'incense of Java'
英语宝典
考试词汇表