| 单词 | fermium |
| 释义 | fermium[ fur-mee-uhm ] / ˈfɜr mi əm / noun Chemistry, Physics.a transuranic element. Symbol: Fm; atomic number: 100. Origin of fermium1950–55; named after E. Fermi; see -ium Words nearby fermiumfermi, Fermi-Dirac statistics, Fermi energy, Fermi, Enrico, fermion, fermium, Fermor, fern, Fernandel, Fernandez, Fernández de Lizardi Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 British Dictionary definitions for fermiumfermium / (ˈfɜːmɪəm) / nouna transuranic element artificially produced by neutron bombardment of plutonium. Symbol: Fm; atomic no: 100; half-life of most stable isotope, 257 Fm: 80 days (approx.) Word Origin for fermiumC20: named after Enrico Fermi Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012 Medical definitions for fermiumfermium [ fûr′mē-əm, fĕr′- ] n. Symbol FmA synthetic radioactive metallic element whose most stable isotope is Fm 257 with a half-life of approximately 100 days. Atomic number 100. The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company. Scientific definitions for fermiumfermium [ fûr′mē-əm ] FmA synthetic, radioactive metallic element of the actinide series that is produced from plutonium or uranium. Its most stable isotope is Fm 257 with a half-life of approximately 100 days. Atomic number 100. See Periodic Table. The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved. |
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