oxygen

Meaning

  1. (countable, uncountable) The chemical element (symbol O) with an atomic number of 8 and relative atomic mass of 15.9994. It is a colorless and odorless gas.
  2. (countable, uncountable) Molecular oxygen (O₂), a colorless, odorless gas at room temperature, also called dioxygen.
  3. (countable, uncountable) A mixture of oxygen and other gases, administered to a patient to help them breathe.
  4. (countable) An atom of this element.
  5. (countable, figuratively, uncountable) A condition or environment in which something can thrive.

Synonyms

O
A2
⭕

oxygenous

atomic number 8

oyster
C2
🦪
own
A1

oxygenium

air
A2
oxygenic
own up
oxygen gas
Translations

Sauerstoff
oxygène
ossigeno
oxígeno
zuurstof

οξυγόνο

oxigénio
oxigen
oxygenium
oksijen
أكسجين
oxigênio
oksîjen

oxigèn

Frequency

B2
Pronounced as (IPA)
/ˈɒksɪd͡ʒən/
Etymology

Etymology tree 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 Borrowed from French oxygène (originally in the form principe oxygène, a variant of principe oxigine ‘acidifying principle’, suggested by Lavoisier), from Ancient Greek ὀξύς (oxús, “sharp”) + γένος (génos, “birth”), referring to oxygen's supposed role in the formation of acids. By surface analysis, oxy- + -gen.

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English