Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
unoxygenated is an adjective meaning "(used of blood) not supplied with oxygen". It carries one recorded sense.
Definitions, synonyms and semantic relations for unoxygenated come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.