请输入您要查询的英文单词:

 

单词 rotenone
释义

WordReference Random House Unabridged Dictionary of American English © 2024
ro•te•none  (rōtn ōn′),USA pronunciation n. [Chem., Pharm.]
  1. Chemistry, Pest Control, Drugsa white, crystalline, water-insoluble, poisonous heterocyclic compound, C23H22O6, obtained from derris root: used chiefly as the active ingredient of certain insecticides and in medicine in the treatment of chiggers and scabies.
  • Japanese) + -one
  • roten- (said to be 1920–25

Collins Concise English Dictionary © HarperCollins Publishers::
rotenone /ˈrəʊtɪˌnəʊn/ n
  1. a white odourless crystalline substance extracted from the roots of derris: a powerful insecticide. Formula: C23H22O6; relative density: 1.27; melting pt: 163°C
Etymology: 20th Century: from Japanese rōten derris + -one
随便看

 

英语词典包含188688条英英释义在线翻译词条,基本涵盖了全部常用单词的英英翻译及用法,是英语学习的有利工具。

 

Copyright © 2004-2022 Newdu.com All Rights Reserved
更新时间:2025/7/23 13:03:43