英文英文字典
英文英文字典
古腾堡计划中的在线英语-英语词典
结果
Xanthinine的结果
Xanthinine
(n.)
A complex nitrogenous substance related to urea and
uric acid, produced as a white powder; -- so called because it forms
yellow salts, and because its solution forms a blue fluorescence like
quinine.