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Meaning of ARGON

Pronunciation:  'ârgân

WordNet Dictionary
[n]  a colorless and odorless inert gas; one of the six inert gases; comprises approximately 1% of the earth's atmosphere

ARGON is a 5 letter word that starts with A.


 Synonyms: Ar, atomic number 18
 See Also: air, argonon, chemical element, element, inert gas, noble gas



Webster's 1913 Dictionary
  1. \Ar"gon\, n. [Gr. ? inactive.] (Chem.)
    A substance regarded as an element, contained in the
    atmosphere and remarkable for its chemical inertness.
    --Rayleigh and Ramsay.
  2. \Ar"gon\, n. [NL., fr. Gr. ?, neut. of ? inactive; ? priv.
    + ? work.] (Chem.)
    A colorless, odorless gas occurring in the air (of which it
    constitutes 0.93 per cent by volume), in volcanic gases,
    etc.; -- so named on account of its inertness by Rayleigh and
    Ramsay, who prepared and examined it in 1894-95. Symbol, A;
    at. wt., 39.9. Argon is condensible to a colorless liquid
    boiling at -186.1[deg] C. and to a solid melting at
    -189.6[deg] C. It has a characteristic spectrum. No compounds
    of it are known, but there is physical evidence that its
    molecule is monatomic. Weight of one liter at 0[deg] C. and
    760 mm., 1.7828 g.