noun · 3 senses · updated from the 2026-07-25 local source snapshot
Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.
Sound
Pronunciation
Each Play button uses your device's default local English voice, or a natural local fallback. The selected voice name appears after playback. This is synthesized speech, not a source recording.
US:/haɪˈpɔk.si.ə/
US:/ˈhaɪ.pɔk.si.ə/
US:Recorded audio is listed in the source snapshot.
CMU ARPABET:HH AY0 P AA1 K S IY0 AH0
Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.
1
noun
Meaning 1
A condition in which tissues are deprived of an adequate supply of oxygen .
Definition source: English Wiktionary via Wiktextract
Usage: countable, uncountable
Topics: medicine, pathology, sciences
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: hyperoxia
Broader terms: underoxygenation
2
noun
Meaning 2
A reduced concentration of dissolved oxygen in an aquatic environment.
Definition source: English Wiktionary via Wiktextract
Usage: countable, uncountable
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: hyperoxia
Broader terms: underoxygenation
3
noun
Meaning 3
oxygen deficiency causing a very strong drive to correct the deficiency
Definition source: Princeton WordNet 3.0
No example sentence was provided for this meaning.
