variants or carbocyanine dye
plural -s
: any of a class of cyanine dyes in whose structure the two heterocyclic rings are joined by a three-carbon chain (as =CH−CH=CH−)
specifically : any such dye containing two quinoline rings

called also trimethine

Word History


International Scientific Vocabulary carb- + cyanine; originally formed as German karbozyanin

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Dictionary Entries Near carbocyanine

Cite this Entry

“Carbocyanine.” Dictionary, Merriam-Webster, Accessed 29 Sep. 2023.

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