nitrox 
noun [mass noun]
A mixture of oxygen and nitrogen used as a breathing gas by divers, especially a mixture containing a lower proportion of nitrogen than is normally present in air, to reduce the risk of decompression sickness.Using nitrox to reduce your nitrogen content offers these advantages....
- I later ask Terry about oxygen, nitrox and helium.
- With basic and advanced nitrox divers should not be able to buy oxygen.
Origin
1980s: from nitrogen + oxygen.
- neo-
- neoadjuvant
- neoanthropic
- neoantigen
- neo-Aristotelean
- neo-Aristotelian
- neo-Aristotelianism
- neo-Aristotlean
- neoarsphenamine
- neo-baroque
- neo-behaviorism
- neo-behaviourism
- neo-behaviourist
- neo-behaviouristic
- neoblast
- neoblastic
- neocapitalism
- neocapitalist
- neocarzinostatin
- neocatastrophism
- neocatastrophist
- neo-Catholic
- neo-Catholicism
- Neocene
- neocerebellar