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doc Definition of argon
    English to English
    noun
  • a colorless and odorless inert gas; one of the six inert gases; comprises approximately 1% of the earth's atmosphere
  • source: WordNet 3.0
  • A substance regarded as an element, contained in the atmosphere and remarkable for its chemical inertness.
  • source: Webster 1913
  • 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° C. and to a solid melting at -189.6° 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° C. and 760 mm., 1.7828 g.
  • source: Webster 1913
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