( n. )
An artificial dyestuff obtained as an orange-yellow powder, and regarded as a phenyl hydrazine derivative of tartaric and sulphonic acids.
( n. )
An artificial dyestuff obtained as an orange-yellow powder, and regarded as a phenyl hydrazine derivative of tartaric and sulphonic acids.
Webster's Revised Unabridged English Dictionary. Пересмотренный полный словарь английского языка Webster. 2012