oxazine dye meaning

[Medicine]
n : a dye containing at least one fused oxazine ring in which the oxygen atom and the nitrogen atom are in the para or 1,4-positions

• oxazine:     /okˈsə-zēn/   ...
• dye:    Verb: dye (dyed,dy ...
• acid dye:    Noun: acid dye&nbs ...

Examples

1. It is classified as an oxazine dye.