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Definition oxygen

Etymology

Borrowed from French oxygène (originally in the form principe oxygène, a variant of principe oxigine ‘acidifying principle’, suggested by Lavoisier), from Ancient Greek ???? (oxús, “sharp”) + ????? (génos, “birth”), referring to oxygen's supposed role in the formation of acids.

Noun

oxygen (countable and uncountable, plural oxygens)

1. 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. Molecular oxygen (O₂), a colorless, odorless gas at room temperature, also called dioxygen.
3. (medicine) A mixture of oxygen and other gases, administered to a patient to help them breathe.
4. (countable) An atom of this element.

Results 57 Words with the letters OXYGEN

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