Definition of unoxygenated in US English:

unoxygenated

adjective

  • Not oxygenated; not containing or supplied with oxygen; not combined with oxygen.

Origin

Late 18th century; earliest use found in Robert Kerr (1757–1813), scientific writer and translator. Probably from un- + oxygenate + -ed.

Pronunciation

unoxygenated

/(ˌ)ʌŋˈɒksɪdʒɪneɪtɪd/