Hyper Dictionary

English Dictionary Computer Dictionary Video Dictionary Thesaurus Dream Dictionary Medical Dictionary

Search Dictionary:  

Meaning of OXYGEN

Pronunciation:  '√Ęksijun

WordNet Dictionary
[n]  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

OXYGEN is a 6 letter word that starts with O.


 Synonyms: atomic number 8, O
 See Also: air, chemical element, element, gas, H2O, liquid oxygen, LOX, ozone, water



Webster's 1913 Dictionary
\Ox"y*gen\, n. [F. oxyg[`e]ne, from Gr. ???? sharp, acid
+ root of ???? to be born. So called because originally
supposed to be an essential part of every acid.]
1. (Chem.) A colorless, tasteless, odorless, gaseous element
   occurring in the free state in the atmosphere, of which it
   forms about 23 per cent by weight and about 21 per cent by
   volume, being slightly heavier than nitrogen. Symbol O.
   Atomic weight 15.96.

Note: It occurs combined in immense quantities, forming eight
      ninths by weight of water, and probably one half by
      weight of the entire solid crust of the globe, being an
      ingredient of silica, the silicates, sulphates,
      carbonates, nitrates, etc. Oxygen combines with all
      elements (except fluorine), forming oxides, bases,
      oxyacid anhydrides, etc., the process in general being
      called oxidation, of which combustion is only an
      intense modification. At ordinary temperatures with
      most substances it is moderately active, but at higher
      temperatures it is one of the most violent and powerful
      chemical agents known. It is indispensable in
      respiration, and in general is the most universally
      active and efficient element. It may be prepared in the
      pure state by heating potassium chlorate. This element
      (called dephlogisticated air by Priestley) was named
      oxygen by Lavoisier because he supposed it to be a
      constituent of all acids. This is not so in the case of
      a very few acids (as hydrochloric, hydrobromic, hydric
      sulphide, etc.), but these do contain elements
      analogous to oxygen in property and action. Moreover,
      the fact that most elements approach the nearer to acid
      qualities in proportion as they are combined with more
      oxygen, shows the great accuracy and breadth of
      Lavoisier's conception of its nature.

2. Chlorine used in bleaching. [Manufacturing name]

Medical Dictionary
 Definition: A gas present in air that is vital to life.
Dream Dictionary
 Definition: Dreaming of oxygen, symbolizes life, your inner spirit, and creative energy. Dreaming that you do not have enough oxygen, suggests that you are feeling suffocated or smothered by a situation in your life.
Thesaurus Terms
 Related Terms: acetylene, ammonia, argon, asphyxiating gas, butane, carbon dioxide, carbon monoxide, chlorine, coal gas, ethane, ether, ethylene, fluorine, formaldehyde, helium, hydrogen, illuminating gas, krypton, lewisite, marsh gas, methane, mustard gas, natural gas, neon, nitrogen, ozone, poison gas, propane, radon, sewer gas, xenon