noun
heliox; helium-oxygen gas mixture
A breathing gas mixture of helium and oxygen, often hypoxic, used in deep diving to reduce nitrogen narcosis and decompression sickness, and in medicine for its low density to ease breathing in obstructed airways.
深海潜水ではヘリオックスが使われることがある。
Heliox is sometimes used in deep-sea diving.
ヘリオックスはヘリウムと酸素の混合ガスだ。
Heliox is a mixture of helium and oxygen.