oxygen
See also: Oxygen
English
Chemical element | |
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O | |
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Etymology
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.
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Pronunciation
Noun
oxygen (countable and uncountable, plural oxygens)
- 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.
- Hypernym: chalcogen
- Molecular oxygen (O2), a colorless, odorless gas at room temperature, also called dioxygen.
- 2013 September-October, Katie L. Burke, “In the News”, in American Scientist:
- Oxygen levels on Earth skyrocketed 2.4 billion years ago, when cyanobacteria evolved photosynthesis: the ability to convert water and carbon dioxide into carbohydrates and waste oxygen using solar energy. The evolutionary precursor of photosynthesis is still under debate, and a new study sheds light.
- (medicine) A mixture of oxygen and other gases, administered to a patient to help them breathe.
- (countable) An atom of this element.
- 2013, Spencer L. Seager, Michael R. Slabaugh, Chemistry for Today: General, Organic, and Biochemistry (page 479)
- Look first at any structure to see if there is a carbon with two oxygens attached. Hemiacetals, hemiketals, acetals, and ketals are all alike in that regard.
- 2013, Spencer L. Seager, Michael R. Slabaugh, Chemistry for Today: General, Organic, and Biochemistry (page 479)
Synonyms
- sourstuff
- E948 when used as a packaging gas
Derived terms
- dioxin
- dioxygen
- gox
- heliox
- liquid oxygen
- lox
- nitrox
- nox
- oxo-
- oxy-
- oxygen-16
- oxygen-17
- oxygen-18
- oxygen bar
- oxygen bottle
- oxygen cylinder
- oxygen debt
- oxygen deficit
- oxygen demand
- oxygen depletion
- oxygen difluoride
- oxygen fluoride
- oxygen gas
- oxygenise, oxygenize
- oxygen lance
- oxygenless
- oxygen mask
- oxygenous
- oxygen tent
- oxygen therapy
- oxygen thief
- singlet oxygen
- tetraoxygen
- triplet oxygen
Related terms
Descendants
- → Burmese: အောက်ဆီဂျင် (aukhcigyang)
Translations
chemical element
|
molecular oxygen
|
atom of oxygen
|
References
- Oxygen on the British Royal Society of Chemistry's online periodic table
See also
Danish
Noun
oxygen n (singular definite oxygenet, not used in plural form)
German
Adjective
oxygen
Inflection
Related terms
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