Definition of neocyanine in English:
neocyanine
noun
ChemistryAny of a group of cyanine dyes which are quaternary iodides derived from lepidine and were formerly used to sensitize photographic emulsions and plates to infrared light.
Pronunciation
neocyanine
/ˌniːə(ʊ)ˈsʌɪəniːn/ /nɪəˈsʌɪəniːn/Origin
1920s.
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