2) A synthetic blue dye consisting of two heterocyclic groups connected by a chain of conjugated double bonds. See cyanine dye.
Synonyms and Related Terms
1. Leitch's blue; Antwerp blue 2. cyanine dye; blu cianina (It.)
Sources Checked for Data in Record
- Ralph Mayer, A Dictionary of Art Terms and Techniques, Harper and Row Publishers, New York, 1969 (also 1945 printing)