( BrE ) ( NAmE hyp·ox·emia ) /ˌhaɪpɒkˈsiːmiə; NAmE -pɑːk-/ noun
[ U ] ( medical ) a lower than normal amount of oxygen in the blood
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WORD ORIGIN
late 19th cent.: from hypo- (denoting an element in a low valency) + oxygen + -aemia , relating to blood.