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Pronunciation varies by accent · 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..
Use nigrosin when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Nigrosin means 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..
The closest synonym depends on the sentence and intended sense.
The opposite depends on the specific sense.
Use nigrosin where its definition matches the intended context.
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