A phenothiazine dye formed as an oxidation product of methylene blue, used chiefly as a biological stain.
Origin
Late 19th century; earliest use found in The New Sydenham Society's Lexicon of Medicine and the Allied Sciences. From German Methylenazur from Methylen + Azur.
Definition of methylene azure in US English:
methylene azure
noun
Chemistry
A phenothiazine dye formed as an oxidation product of methylene blue, used chiefly as a biological stain.
Origin
Late 19th century; earliest use found in The New Sydenham Society's Lexicon of Medicine and the Allied Sciences. From German Methylenazur from Methylen + Azur.