oxazine


oxazine

(ˈɒksəˌziːn) n (Elements & Compounds) any of 13 heterocyclic compounds with the formula C4H5NO[from oxy-2 + azine]

ox•a•zine

(ˈɒk səˌzin, -zɪn)

n. any of a group of 13 compounds having the formula C4H5NO, the atoms of which are arranged in a six-membered ring. [1895–1900]