noun
: an azine 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 — compare phenoxazine
noun
: an azine 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 — compare phenoxazine
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012