 oxygen |
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| 1. | [ noun ] (chemistry) a nonmetallic bivalent element that is normally a colorless odorless tasteless nonflammable diatomic gas; constitutes 21 percent of the atmosphere by volume; the most abundant element in the earth's crust | |
| Synonyms: | O atomic_number_8 | |
| Related terms: | gas chemical_element liquid_oxygen air water ozone oxygenize oxygenate | |
| Similar spelling: |
oxygenize oxygenise oxygenate oxygenase oxigenise |
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