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weak force

noun, Physics.
a force between elementary particles that causes certain processes that take place with low probability, as radioactive beta-decay and collisions between neutrinos and other particles.
Also called weak interaction force.
Compare weak interaction.
Origin of weak force
First recorded in 1965-70 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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Examples from the Web for weak force
Contemporary Examples
  • Justice Souter, whom Sotomayor would replace, had an equally fine c.v., but turned out to be a weak force on the High Court.

Historical Examples
  • This is an operation too difficult for a weak force to accomplish.

    The Story of the Malakand Field Force Sir Winston S. Churchill
  • Apparently it was too heavy for the weak force activating the cylinders.

    Sense from Thought Divide Mark Irvin Clifton
  • You must not stay and listen to me,' pushing her away with weak force.

    Heriot's Choice Rosa Nouchette Carey
  • One night, when retreating with a weak force, he had the Waikatos at his heels.

    The Long White Cloud

    William Pember Reeves
  • To defeat such an enormous force as this, a European expedition was necessary, not the weak force at Gordon's disposal.

  • It must not be supposed that the whisper is always associated with moderate or with weak force as in the preceding examples.

  • But it had been dearly bought, and their leader saw plainly that he could not succeed in that savage land with such a weak force.

    The Spanish Pioneers Charles F. Lummis
weak force in Science
weak force
The fundamental force that acts between leptons and is involved in the decay of hadrons. The weak nuclear force is responsible for nuclear beta decay (by changing the flavor of quarks) and for neutrino absorption and emission. It is mediated by the intermediate vector bosons (the W boson and the Z boson), and is weaker than the strong nuclear force and the electromagnetic force but stronger than gravity. Some scientists believe that the weak nuclear force and the electromagnetic force are both aspects of a single force called the electroweak force. Also called weak nuclear force, weak interaction. Compare electromagnetic force.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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weak force in Culture

weak force definition

One of the four fundamental forces of nature. It is involved primarily in the phenomenon of radioactivity. (See standard model and strong force.)

The New Dictionary of Cultural Literacy, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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