( n. )
A hypothetical nitro derivative of quinol or hydroquinone, not known in the free state, but forming a well defined series of derivatives.
( n. )
A hypothetical nitro derivative of quinol or hydroquinone, not known in the free state, but forming a well defined series of derivatives.
Webster's Revised Unabridged English Dictionary. Пересмотренный полный словарь английского языка Webster. 2012