the world > matter > chemistry > chemical reactions or processes > subject to chemical reactions or processes [verb (transitive)] > subject to named chemical reaction or process > subject to nitrogenation (3)
To nitrogenize; (hence) to deprive of oxygen, leaving nitrogen only.
transitive. To combine or treat with nitrogen; (Metallurgy) = nitride, v.
transitive. To combine or treat with nitrogen; to nitride (an alloy steel).