follow Dictionary.com

Today's Word of the Day means...

weak force

noun, Physics.
1.
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
1965-1970
1965-70
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
Cite This Source
British Dictionary definitions for weak force

weak interaction

noun
1.
(physics) an interaction between elementary particles that is responsible for certain decay processes, operates at distances less than about 10–15 metres, and is 1012 times weaker than the strong interaction. The weak interaction and electromagnetic interactions are now described by the unifying electroweak theory Also called weak nuclear interaction, weak nuclear force See interaction (sense 2), electroweak interaction
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
Cite This Source
weak force in Science
weak force
  (wēk)   
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.
Cite This Source
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 American Heritage® New Dictionary of Cultural Literacy, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
Cite This Source

Word of The Day

Difficulty index for weak force

Few English speakers likely know this word

Word Value for weak

11
11
Scrabble Words With Friends