fermium

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fer·mi·um

 (fûr′mē-əm, fĕr′-)
n. Symbol Fm
A synthetic transuranic metallic element having over 20 isotopes and isomers with mass numbers ranging from 242 to 260. The longest-lived isotope has mass number 257 and a half-life of approximately 100 days. Atomic number 100; melting point 1527°C; valence 3. See Periodic Table.

[After Enrico Fermi.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

fermium

(ˈfɜːmɪəm)
n
(Nuclear Physics) a transuranic element artificially produced by neutron bombardment of plutonium. Symbol: Fm; atomic no: 100; half-life of most stable isotope, 257Fm: 80 days (approx.)
[C20: named after Enrico Fermi]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

fer•mi•um

(ˈfɜr mi əm, ˈfɛər-)

n.
a transuranic element, artificially produced from plutonium or uranium. Symbol: Fm; at. no.: 100.
[1950–55; after E. Fermi; see -ium2]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.

fer·mi·um

(fûr′mē-əm)
Symbol Fm A synthetic, radioactive metallic element of the actinide series that is produced from plutonium or uranium. Its most stable isotope has a half-life of about 100 days. Atomic number 100. See Periodic Table.
The American Heritage® Student Science Dictionary, Second Edition. Copyright © 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.fermium - a radioactive transuranic metallic element produced by bombarding plutonium with neutronsfermium - a radioactive transuranic metallic element produced by bombarding plutonium with neutrons
metal, metallic element - any of several chemical elements that are usually shiny solids that conduct heat or electricity and can be formed into sheets etc.
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
Translations
фермий
fermium
fermium
fermio
fermium
fermium
fermium
fermij
fermium
fermín
フェルミウム
fermium
fermis
fermium
ferm
férmio
fermium
fermij
fermium
fermiyum

fermium

[ˈfɜːmɪəm] Nfermio m
Collins Spanish Dictionary - Complete and Unabridged 8th Edition 2005 © William Collins Sons & Co. Ltd. 1971, 1988 © HarperCollins Publishers 1992, 1993, 1996, 1997, 2000, 2003, 2005