nitrox

== English == === Etymology === Blend of nitro(gen) +‎ ox(ygen). Analyzable as nitro- +‎ ox === Pronunciation === (Received Pronunciation) IPA(key): /ˈnaɪtɹɒks/ (General American) IPA(key): /ˈnaɪtɹɑks/ Hyphenation: nitr‧ox === Noun === nitrox (uncountable) (metallurgy) An industrial process for case hardening (imparting greater surface hardness to) metal objects, involving nitrocarburizing (the diffusion of carbon and nitrogen into the metal) followed by oxidation. (underwater diving) A mixture of nitrogen and oxygen, the nitrogen content being lower than that of normal air, which is used in place of air as a breathing gas. ==== Coordinate terms ==== (mixture of nitrogen and oxygen): heliair, heliox, trimix ==== Translations ==== === Further reading === nitrox on Wikipedia.Wikipedia