betulin

桦木脑, 桦木醇, 白桦脂醇

词形变化

betulins 复数 betulins

释义与例句

n.
  1. 1.

    A naturally-abundant triterpene, commonly isolated from the bark of birch trees, that can be converted to betulinic acid

    可数 不可数 化学 生物

词源

Betula + -in

来源：wiktionary