from The Century Dictionary.

  • noun A contraction of fathom.

from the GNU version of the Collaborative International Dictionary of English.

  • noun acron. A method of transmitting radio signals by modulating the frequency of the carrier wave; -- opposed to AM (amplitude modulation), in which the signal modulates the amplitude, rather than the frequency of the carrier wave.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun metrology The symbol for femtometer or femtometre, a unit of length. The name fermi for this unit is obsolete.
  • noun abbreviation for Fathom

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • noun modulation of the frequency of the (radio) carrier wave
  • noun a radioactive transuranic metallic element produced by bombarding plutonium with neutrons


Sorry, no etymologies found.



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  • Fm. Chemical element symbol for Fermium.

    December 16, 2007