dicarbocyanine
noun
di·carbocyanine
| \ "+\
variants:
or dicarbocyanine dye
Definition of dicarbocyanine
: any of certain cyanine dyes in whose structure the two heterocyclic rings are joined by a five-carbon chain (as =CH−CH=CH−CH=CH−)
specifically
: such a dye containing two quinoline rings
— called also pentamethine
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