Meanings
plural SpO2s
- abbreviationinitialismInitialism of peripheral oxygen saturation (referring to the capillaries rather than the arteries).
Origin
from peripheral oxygen saturation Etymology tree Proto-Indo-European *per-der. Ancient Greek περί (perí) Ancient Greek περῐ- (perĭ-) Proto-Indo-European *bʰer- Proto-Indo-European *-eti Proto-Indo-European *bʰéreti Proto-Hellenic *pʰérō Ancient Greek φέρω (phérō) Ancient Greek περιφέρω (periphérō) Proto-Indo-European *-os Proto-Indo-European *-ēs Proto-Hellenic *-ēs Ancient Greek -ης (-ēs) Ancient Greek -ής (-ḗs) Ancient Greek περιφερής (peripherḗs) Proto-Indo-European *-is Proto-Indo-European *-h₂ Proto-Indo-European *-ih₂der. Ancient Greek -ια (-ia) Ancient Greek περιφέρεια (periphéreia)bor. Latin peripherialbor. Middle French peripheriebor. English peripher(y) Proto-Indo-European *h₂el- Proto-Indo-European *-is Proto-Indo-European *h₂élisder.? Proto-Italic *-ālis Latin -ālislbor. Old French -albor. ▲ Latin -ālis Old French -elbor. ▲ Latin -ālisbor. Middle English -al English -al English peripheral Proto-Indo-European *h₂eḱ-der.? Ancient Greek ὀξύς (oxús) Proto-Indo-European *ǵenh₁- Proto-Indo-European *-os Proto-Indo-European *ǵénh₁os Proto-Hellenic *génos Ancient Greek γένος (génos) French oxygènebor. English oxygen Late Latin saturatiobor. English saturation English peripheral oxygen saturation English SpO2
Full word history & related roots →Cite this entry
SpO2. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/SpO2
“SpO2.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/SpO2. Accessed November 3, 2026.
WatkinsX Dictionary, s.v. “SpO2,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/SpO2.
Source: SpO2 on Wiktionary, CC BY-SA 4.0.