请输入您要查询的英文单词:

 

单词 pinene
释义 pi·nene
\ˈpīˌnēn\ noun
(-s)
Etymology: International Scientific Vocabulary pin- (from Latin pinus pine) + -ene — more at pine
: either of two liquid isomeric unsaturated bicyclic terpene hydrocarbons C10H16 derived from pinane and found in turpentine oils:
 a. : the isomer having the ethylenic double bond as part of the ring system, occurring in many essential oils (as juniper oil and eucalyptus oil), constituting in either its dextrorotatory or levorotatory form the principal component of various turpentines, and used chiefly as a solvent and chemical intermediate (as in making camphor or terpineol) — called also alpha-pinene, 2-pinene
 b. : nopinene
随便看

 

英语词典包含332784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:2024/11/14 3:49:12