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单词 benzoin
释义 benzoin
benzoin1
 /ben"zoh in, -zoyn, ben zoh"in/,  n.  
  1. Also called gum benjamin, gum benzoin. a reddish-brown, aromatic balsamic resin occurring in almondlike fragments and having a vanillalike odor, obtained from trees of the genus Styrax, esp. S. benzoin, of Java, Sumatra, etc.: used in the manufacture of perfume and cosmetics and in medicine internally as an expectorant and externally as an antiseptic.
  2. Also called benjamin, benjamin-bush. any plant belonging to the genus Lindera (Benzoin), of the laurel family, including the spicebush and similar aromatic plants.
 [1550-60; earlier benjoin < MF < Pg beijoim and Sp benjuí < Ar luban jawi frankincense of Java (lu- prob. constructed as the definite article); z of benzoin < It benzoi << Ar]
benzoin2
 /ben"zoh in, -zoyn, ben zoh"in/, n. Chem.
 a white, slightly water-soluble powder, C14H12O2, derived by the condensation of benzaldehyde in the presence of potassium cyanide, and used in organic synthesis.
 [BENZO- + -IN2]
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更新时间:2024/9/20 10:38:18