English Reference

Word

hypoxia

Phoneticshy·pox·ia

US/haɪˈpɑksiə/

UK/haɪpˈɒksiə/

Definition

n. a medical condition where your body or a part of it does not get enough oxygen. This can cause your cells to stop working properly and can be very dangerous.

n. a pathological state in which an organ or tissue is deprived of adequate oxygen supply at the cellular level. This can lead to cellular dysfunction and, if severe, to necrosis.

Examples

“The doctor explained that the patient's hypoxia was caused by a lung infection.”

“High-altitude climbers often experience hypoxia because the air contains less oxygen than at sea level.”

“Prolonged hypoxia in the brain can lead to irreversible neurological damage, making early detection and oxygen therapy critical in emergency medicine.”

Examples

simple

“The doctor explained that the patient's hypoxia was caused by a lung infection.”

contextual

“High-altitude climbers often experience hypoxia because the air contains less oxygen than at sea level.”

complex

“Prolonged hypoxia in the brain can lead to irreversible neurological damage, making early detection and oxygen therapy critical in emergency medicine.”

Real-World Examples

“The great ape, which was discovered by a farmer, was rescued and given emergency treatment for hypoxia, but later died.”
BBC News 23 Sept 2026
“Amyloid-like fibrin microclots have been repeatedly reported in long COVID patients and linked to tissue hypoxia and neurocognitive symptoms.”
Phys.org 25 Aug 2026

Etymology

By surface analysis, hyp- + ox- + -ia.

Etymology adapted from Wiktionary, available under CC BY-SA 4.0.

This entry

Exam level
CambridgeCambridgeCambridge English QualificationsThe exam suite from Cambridge University Press & Assessment, from A1 Movers up to C2 Proficiency. The benchmark names double as CEFR labels.C1 AdvancedIELTSIELTSInternational English Language Testing SystemThe 0–9 band test co-owned by the British Council, IDP, and Cambridge. Used for university entry, work, and migration.7.0–8.0TOEFL iBTTOEFL iBTTest of English as a Foreign Language, Internet-Based TestETS's academic English test, the standard route for US university admissions. Scored 0–120, with a 1–6 scale since 2026.1–6 scale: 5.0–5.595–113TOEICTOEICTest of English for International CommunicationETS's workplace English test, big in Japan and Korea. Listening & Reading scores 10–990 and tops out at C1.945–990
Frequency
Occasional
Level
C1 · Advanced
Updated

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