nigrosin

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noun

A mixture of synthetic black dyes made by heating a mixture of nitrobenzene, aniline and aniline hydrochloride in the presence of a copper or iron catalyst; used for staining of bacteria and as a colorant.

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Meanings

nounnigrosin (countable and uncountable, plural nigrosins)

plural nigrosins

  1. countableuncountableA mixture of synthetic black dyes made by heating a mixture of nitrobenzene, aniline and aniline hydrochloride in the presence of a copper or iron catalyst; used for staining of bacteria and as a colorant.
Cite this entry
APA

nigrosin. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/nigrosin

MLA

“nigrosin.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/nigrosin. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “nigrosin,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/nigrosin.

Source: nigrosin on Wiktionary, CC BY-SA 4.0.