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carbocyanine

noun
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car·​bo·​cy·​a·​nine | \ ¦kär(ˌ)bōˈsīəˌnēn, -nə̇n \
variants: or carbocyanine dye
plural -s

Definition of carbocyanine

: 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

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History and Etymology for carbocyanine

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

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“Carbocyanine.” The Merriam-Webster.com Dictionary, Merriam-Webster Inc., https://www.merriam-webster.com/dictionary/carbocyanine. Accessed 26 January 2020.

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