argon : Dictionary / Wörterbuch (BEOLINGUS, TU Chemnitz)

English Dictionary: argon	by the DICT Development Group
4 results for argon
From WordNet (r) 3.0 (2006) [wn]:
argon n a colorless and odorless inert gas; one of the six inert gases; comprises approximately 1% of the earth's atmosphere Synonym(s): argon, Ar, atomic number 18
From Webster's Revised Unabridged Dictionary (1913) [web1913]:
Argon \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.
From Webster's Revised Unabridged Dictionary (1913) [web1913]:
Argon \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.
From The Elements (22Oct97) [elements]:
argon Symbol: Ar Atomic number: 18 Atomic weight: 39.948 Monatomic noble gas. Makes up 0.93% of the air. Colourless, odorless. Is inert and has no true compounds. Lord Rayleigh and Sir william Ramsey identified argon in 1894.