Meanings
PaO2/FiO2 ratio1
nounPaO₂/FiO₂ ratio (plural PaO2/FiO2 ratios)
plural PaO2/FiO2 ratios · alternative paO2/FiO2 ratio
- Synonym of Horowitz index.
Synonyms: Horowitz index
paO2/FiO2 ratio2
nounpaO₂/FiO₂ ratio (plural paO2/FiO2 ratios)
plural paO2/FiO2 ratios
- alternativeAlternative form of PaO2/FiO2 ratio.
Synonyms & antonyms
nounSynonym of Horowitz index.
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APA
PaO2/FiO2 ratio. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/PaO2%2FFiO2%20ratio
MLA
“PaO2/FiO2 ratio.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/PaO2%2FFiO2%20ratio. Accessed November 3, 2026.
Chicago
WatkinsX Dictionary, s.v. “PaO2/FiO2 ratio,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/PaO2%2FFiO2%20ratio.
Source: PaO2/FiO2 ratio on Wiktionary, CC BY-SA 4.0.