carbocyanine
noun
car·bo·cy·a·nine
¦kär(ˌ)bōˈsīəˌnēn,
-nə̇n
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
Etymology
International Scientific Vocabulary carb- + cyanine; originally formed as German karbozyanin