from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. The deflection of radiation or particles by electromagnetic or nuclear forces through angles greater than 90° to the initial direction of travel.
  • n. The radiation or particles so deflected.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. The deflection of particles and/or radiation through angles greater than 90 degrees to the original direction of travel.
  • n. The particles and/or radiation deflected in this manner.
  • n. A portion of the energy of electromagnetic radiation such as a laser or radio waves that is scattered back in the direction of the source of radiation by an obscurant.
  • n. The sending of IP packets to essentially random addresses in response to incoming packets that have a spoofed origin.
  • v. To scatter particles and/or radiation back to the direction from which they come.

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

  • v. scatter (radiation) by the atoms of the medium through which it passes


Back-formation from backscattering. (Wiktionary)


  • The other scanners use X-ray beams, in what is known as "backscatter technology." Front Page

  • The other scanners use X-ray beams, in what is known as backscatter technology. Front Page

  • The full-body scanners, called backscatter devices, are supposed to deliver only a tiny amount of radiation — about as much as an airplane passenger gets during two minutes of a typical flight.

    TSA to retest airport body scanners for radiation

  • The article, published online Monday in the Archives of Internal Medicine, estimated the potential risks of the radiation emitted from so-called backscatter X-ray scanners, a commonly used machine.

    Little Risk to Body Scans in Airports

  • Consider that the amount of radiation that you get from a scan called backscatter because it reflects back rather than penetrates the skin is so low that it is less than 2% of the amount of radiation you are exposed to in one day of simply walking around.

    Body Scanners Provoke Irrational Fear Of Over-Radiation At The Airport

  • This is using actually what's called a backscatter technology.

    CNN Transcript Jan 8, 2010

  • This scan, using so-called backscatter technology can see right through my clothing.

    CNN Transcript Jan 1, 2010

  • First of all, we're talking about this thing known as backscatter X-ray screening.

    CNN Transcript Jan 9, 2010

  • And when it comes to backscatter, which is more like an X-ray, he said they might have to change the settings there to bring back a little more detail in the groin area, but he thought if that was done, that would also work.

    CNN Transcript Dec 29, 2009

  • But, Larry, let me ask you for your reaction for the news moments ago from Amsterdam, that Dutch officials are going to put into use the so-called backscatter or millimeter wave imaging machines for all passengers destined for the United States?

    CNN Transcript Dec 30, 2009

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