pyrethrin

n. [化]除虫菊酯

词形变化

pyrethrins 复数 pyrethrins

别名

pyrethrine

释义与例句

n.
  1. 1.

    Any of a number of naturally occurring insecticides extracted from the pyrethrum plant; unusual in having a cyclopropane ring.

    化学

词源

From pyrethrum + -in.

来源：wiktionary