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americium
americium (symbol Am) Radioactive metallic element of the actinide series, first made (1944) by US nuclear chemist Glenn Seaborg (1912–99) and others by neutron bombardment of plutonium. It is used in smoke detectors, and Am241 is a source of gamma rays. Properties: at.no. 95; r.a.m. 243.13; r.d. 13.67; m.p. 995°C (1821°F); b.p. unknown; most stable isotope Am243 (half-life 7650 yr).
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"americium." World Encyclopedia. 2005. Encyclopedia.com. 31 May. 2012 <http://www.encyclopedia.com>. "americium." World Encyclopedia. 2005. Encyclopedia.com. (May 31, 2012). http://www.encyclopedia.com/doc/1O142-americium.html "americium." World Encyclopedia. 2005. Retrieved May 31, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O142-americium.html |
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AM
AM • abbr. ∎ amplitude modulation. ∎ Master of Arts. |
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"AM." The Oxford Pocket Dictionary of Current English. 2009. Encyclopedia.com. 31 May. 2012 <http://www.encyclopedia.com>. "AM." The Oxford Pocket Dictionary of Current English. 2009. Encyclopedia.com. (May 31, 2012). http://www.encyclopedia.com/doc/1O999-am.html "AM." The Oxford Pocket Dictionary of Current English. 2009. Retrieved May 31, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O999-am.html |
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am
am (Ger.). At the, on the, to the, by the, near the. As in Am Meer, by the sea.
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MICHAEL KENNEDY and JOYCE BOURNE. "am." The Concise Oxford Dictionary of Music. 1996. Encyclopedia.com. 31 May. 2012 <http://www.encyclopedia.com>. MICHAEL KENNEDY and JOYCE BOURNE. "am." The Concise Oxford Dictionary of Music. 1996. Encyclopedia.com. (May 31, 2012). http://www.encyclopedia.com/doc/1O76-am.html MICHAEL KENNEDY and JOYCE BOURNE. "am." The Concise Oxford Dictionary of Music. 1996. Retrieved May 31, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O76-am.html |
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am
am / am/ • 1st person singular present of be. |
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"am." The Oxford Pocket Dictionary of Current English. 2009. Encyclopedia.com. 31 May. 2012 <http://www.encyclopedia.com>. "am." The Oxford Pocket Dictionary of Current English. 2009. Encyclopedia.com. (May 31, 2012). http://www.encyclopedia.com/doc/1O999-am010.html "am." The Oxford Pocket Dictionary of Current English. 2009. Retrieved May 31, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O999-am010.html |
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Am
Am • symb. the chemical element americium. |
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Cite this article
"Am." The Oxford Pocket Dictionary of Current English. 2009. Encyclopedia.com. 31 May. 2012 <http://www.encyclopedia.com>. "Am." The Oxford Pocket Dictionary of Current English. 2009. Encyclopedia.com. (May 31, 2012). http://www.encyclopedia.com/doc/1O999-am005.html "Am." The Oxford Pocket Dictionary of Current English. 2009. Retrieved May 31, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O999-am005.html |
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Am
Am symbol for the element americium . |
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"Am." The Columbia Encyclopedia, 6th ed.. 2011. Encyclopedia.com. 31 May. 2012 <http://www.encyclopedia.com>. "Am." The Columbia Encyclopedia, 6th ed.. 2011. Encyclopedia.com. (May 31, 2012). http://www.encyclopedia.com/doc/1E1-Am.html "Am." The Columbia Encyclopedia, 6th ed.. 2011. Retrieved May 31, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1E1-Am.html |
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AM
AM Abbreviation of amplitude modulation
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"AM." World Encyclopedia. 2005. Encyclopedia.com. 31 May. 2012 <http://www.encyclopedia.com>. "AM." World Encyclopedia. 2005. Encyclopedia.com. (May 31, 2012). http://www.encyclopedia.com/doc/1O142-AM.html "AM." World Encyclopedia. 2005. Retrieved May 31, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O142-AM.html |
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AM
AM see modulation ; radio . |
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Cite this article
"AM." The Columbia Encyclopedia, 6th ed.. 2011. Encyclopedia.com. 31 May. 2012 <http://www.encyclopedia.com>. "AM." The Columbia Encyclopedia, 6th ed.. 2011. Encyclopedia.com. (May 31, 2012). http://www.encyclopedia.com/doc/1E1-X-AM.html "AM." The Columbia Encyclopedia, 6th ed.. 2011. Retrieved May 31, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1E1-X-AM.html |
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AM
AM abbr. amplitude modulation.
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"AM." The Oxford Essential Dictionary of the U.S. Military. 2001. Encyclopedia.com. 31 May. 2012 <http://www.encyclopedia.com>. "AM." The Oxford Essential Dictionary of the U.S. Military. 2001. Encyclopedia.com. (May 31, 2012). http://www.encyclopedia.com/doc/1O63-AM.html "AM." The Oxford Essential Dictionary of the U.S. Military. 2001. Retrieved May 31, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O63-AM.html |
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AM
AM. See ANNO MUNDI.
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JAMES MacKILLOP. "AM." A Dictionary of Celtic Mythology. 2004. Encyclopedia.com. 31 May. 2012 <http://www.encyclopedia.com>. JAMES MacKILLOP. "AM." A Dictionary of Celtic Mythology. 2004. Encyclopedia.com. (May 31, 2012). http://www.encyclopedia.com/doc/1O70-AM.html JAMES MacKILLOP. "AM." A Dictionary of Celtic Mythology. 2004. Retrieved May 31, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O70-AM.html |
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am
am see BE.
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T. F. HOAD. "am." The Concise Oxford Dictionary of English Etymology. 1996. Encyclopedia.com. 31 May. 2012 <http://www.encyclopedia.com>. T. F. HOAD. "am." The Concise Oxford Dictionary of English Etymology. 1996. Encyclopedia.com. (May 31, 2012). http://www.encyclopedia.com/doc/1O27-am.html T. F. HOAD. "am." The Concise Oxford Dictionary of English Etymology. 1996. Retrieved May 31, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O27-am.html |
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am
am
•am, Amsterdam, Assam, Bram, cam, cham, cheongsam, clam, cram, dam, damn, drachm, dram, exam, femme, flam, gam, glam, gram, ham, jam, jamb, lam, lamb, mam, mesdames, Omar Khayyám, Pam, pram, pro-am, ram, Sam, scam, scram, sham, Siam, slam, Spam, swam, tam, tram, Vietnam, wham, yam
•in memoriam • ad nauseam
•iamb, Priam
•grandam • Edam • goddam
•quondam • Potsdam • cofferdam
•Rotterdam • Oxfam • Birmingham
•Abraham • logjam • CAD-CAM
•minicam • Nicam
•Eelam, Elam
•flimflam • oriflamme • Suriname
•ad personam • diazepam • tangram
•ashram • telegram • milligram
•epigram • centigram • dithyramb
•program, programme
•cardiogram • radiogram • echogram
•mammogram
•aerogramme (US aerogram)
•microgram • dirham
•electrocardiogram • ideogram
•heliogram • diaphragm • diagram
•parallelogram • kilogram • hologram
•encephalogram • anagram
•monogram • sonogram • kissogram
•pentagram • cryptogram • photogram
•tam-tam • wigwam • whim-wham
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Cite this article
"am." Oxford Dictionary of Rhymes. 2007. Encyclopedia.com. 31 May. 2012 <http://www.encyclopedia.com>. "am." Oxford Dictionary of Rhymes. 2007. Encyclopedia.com. (May 31, 2012). http://www.encyclopedia.com/doc/1O233-am.html "am." Oxford Dictionary of Rhymes. 2007. Retrieved May 31, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O233-am.html |
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am
am Physics, symbol for attometre(s)
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Cite this article
FRAN ALEXANDER , PETER BLAIR , JOHN DAINTITH , ALICE GRANDISON , VALERIE ILLINGWORTH , ELIZABETH MARTIN , ANNE STIBBS , JUDY PEARSALL , and SARA TULLOCH. "am." The Oxford Dictionary of Abbreviations. 1998. Encyclopedia.com. 31 May. 2012 <http://www.encyclopedia.com>. FRAN ALEXANDER , PETER BLAIR , JOHN DAINTITH , ALICE GRANDISON , VALERIE ILLINGWORTH , ELIZABETH MARTIN , ANNE STIBBS , JUDY PEARSALL , and SARA TULLOCH. "am." The Oxford Dictionary of Abbreviations. 1998. Encyclopedia.com. (May 31, 2012). http://www.encyclopedia.com/doc/1O25-am.html FRAN ALEXANDER , PETER BLAIR , JOHN DAINTITH , ALICE GRANDISON , VALERIE ILLINGWORTH , ELIZABETH MARTIN , ANNE STIBBS , JUDY PEARSALL , and SARA TULLOCH. "am." The Oxford Dictionary of Abbreviations. 1998. Retrieved May 31, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O25-am.html |
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