Ar, symbol for the element argon.
Ar
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The noun has one meaning:
Meaning #1:
a colorless and odorless inert gas; one of the six inert gases; comprises approximately 1% of the earth's atmosphere
Synonyms: argon, atomic number 18
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 | geometric progression (mathematics) |
| geometric series (mathematics) |
| Ar. (abbreviation) |
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 | Columbia Encyclopedia. The Columbia Electronic Encyclopedia, Sixth Edition Copyright © 2003, Columbia University Press. Licensed from Columbia University Press. All rights reserved. www.cc.columbia.edu/cu/cup/ Read more |
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| Medical Dictionary. The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Read more |
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| Veterinary Dictionary. Saunders Comprehensive Veterinary Dictionary 3rd Edition. Copyright © 2007 by D.C. Blood, V.P. Studdert and C.C. Gay, Elsevier. All rights reserved. Read more |
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| WordNet. WordNet 1.7.1 Copyright © 2001 by Princeton University. All rights reserved. Read more |
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