Definitions

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

  • noun US spelling of femtometre: A length of 10-15 of a meter, 1 quadrillionth of a meter.

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

  • noun a metric unit of length equal to one quadrillionth of a meter

Etymologies

from Wiktionary, Creative Commons Attribution/Share-Alike License

femto- +‎ meter

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Examples

  • Femto-neutrons or 'femtons' are fast neutrons of femtometer wavelength, a million times shorter than the current nanotechnology diagnostic probes which operate on nanometer scale.

    Nano Tech Wire 2010

  • Femto-neutrons or 'femtons' are fast neutrons of femtometer wavelength, a million times shorter than the current nanotechnology diagnostic probes which operate on nanometer scale.

    Nano Tech Wire 2010

  • Femto-neutrons or 'femtons' are fast neutrons of femtometer wavelength, a million times shorter than the current nanotechnology diagnostic probes which operate on nanometer scale.

    FinanzNachrichten.de: Aktuelle Nachrichten 2010

  • I'm sure that there's a reason you started to ask about making some kind of measurement at the 100 femtometer level but for now you've just baffled me.

    CR4 - Recent Forum Threads and Blog Entries 2010

  • Femto-neutrons or 'femtons' are fast neutrons of femtometer wavelength, a million times shorter than the current nanotechnology diagnostic probes which operate on nanometer scale.

    Nano Tech Wire 2010

  • Femto-neutrons or 'femtons' are fast neutrons of femtometer wavelength, a million times shorter than the current nanotechnology diagnostic probes which operate on nanometer scale.

    Nano Tech Wire 2010

  • The first unit to go into the field, pictured below, "can detect a 10 femtometer change in the position of its center chip.

    All DN headlines 2009

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