( n. )
A red or violet dyestuff having a greenish metallic luster. It is produced artificially, by the chemical dehydration of thionine, as a brown amorphous powder.
( n. )
A red or violet dyestuff having a greenish metallic luster. It is produced artificially, by the chemical dehydration of thionine, as a brown amorphous powder.
Webster's Revised Unabridged English Dictionary. Пересмотренный полный словарь английского языка Webster. 2012