Dictionary Entry
oxygen
nounFind the meaning of the word oxygen, plus dictionary definition, pronunciation, thesaurus-style synonyms, antonyms, and related vocabulary.
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Meaning
Dictionary meaning in a clear, student-friendly format.
A colorless, odorless gas essential for respiration and combustion, the chemical element O.
Example Sentence
Plants produce oxygen during photosynthesis, which is vital for most life on Earth.
Usage Note
Used by living things to breathe, in medical treatments, for welding, and as a component in rocket fuel.
Antonyms
No antonyms have been added to this entry yet.