A type of chemical compound that has a six-membered ring with four carbon atoms, one oxygen atom, and one nitrogen atom.
Oxazines are important in chemistry and can be used in many different ways.
Examples:
The scientist studied the oxazine in the lab.
Oxazine is a kind of chemical.
The oxazine is in the bottle.
I don't understand how oxazine works.
The oxazine is the most important chemical in the world!
She used oxazine to make a new medicine.