noun
Usage: often capitalized S&B
: any of several black sulfur dyes ; especially : one made from 2,4-dinitrophenol — see dye table I (especially under Sulfur Black 1)
noun
Usage: often capitalized S&B
: any of several black sulfur dyes ; especially : one made from 2,4-dinitrophenol — see dye table I (especially under Sulfur Black 1)
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012