请输入您要查询的词汇:

 

词汇 methadone
词源

methadone n.

synthetic analgesic used as a substitute for morphine or heroin in treatment of addiction, 1947, generic designation for 6-dimethylamino-4, 4-diphenyl-3-heptanone. For origins of the syllables, see methyl + amino- + di- + -one.

updated on January 06, 2019

随便看

 

英语词源词典收录了45867条英语词源词条,基本涵盖了全部常用英语词汇的起源、历史,是研究英语词汇或通过词源学英语的必备工具。

 

Copyright © 2000-2024 Newdu.com.com All Rights Reserved
更新时间:2025/5/25 17:38:38