[ fur-mee-uhm ]
/ ˈfɜr mi əm /
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noun Chemistry, Physics.
a transuranic element. Symbol: Fm; atomic number: 100.
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“Was” is used for the indicative past tense of “to be,” and “were” is only used for the subjunctive past tense.
Words nearby fermium
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021
Example sentences from the Web for fermium
Even after that it could be stopped, provided one had a way to get rid of the violently fissioning fermium.
He should have known automatically that it was building toward Fermium 256.
British Dictionary definitions for fermium
/ (ˈfɜːmɪəm) /
a 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 fermium
C20: 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 fermium
[ fûr′mē-əm, fĕr′- ]
n. Symbol Fm
A 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 fermium
[ fûr′mē-əm ]
A 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.