请输入您要查询的英文单词:

 

单词 pyroxanthin
释义 pyroxanthin Chem.|paɪərɒkˈsænθɪn|
[f. pyro- 3 b + Gr. ξανθ-ός yellow + -in1.]
A yellow crystalline substance, C15H12O3, contained in crude wood-spirit, and produced by the action of potash on one of the constituents of the heavy oil of wood-tar.
1838R. D. Thomson in Brit. Ann. 331 Eblanin or pyroxanthin.1866–8Watts Dict. Chem. IV. 776 Pyroxanthin crystallises in long yellow needles.
Hence pyroˈxanthogen Chem., the constituent of wood-tar from which pyroxanthin is supposed to be formed (Watts Dict. Chem. 1866–8).
随便看

 

英语词典包含277258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:2024/12/22 16:04:51