lambda particle

lambda particle

noun Physics.
any of a family of neutral baryons with strangeness −1 or charm +1, and isotopic spin 0. The least massive member of the lambda family was the first strange particle to be discovered. Symbol: Λ
Also, lambda baryon.


Origin:
1950–55
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
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Lambda particle is always a great word to know.
So is viscosity. Does it mean:
the property of a fluid that resists the force tending to cause the fluid to flow; the measure of the extent to which a fluid possesses this property
the time required for one half the atoms of a given amount of a radioactive substance to disintegrate
American Heritage
Science Dictionary
lambda particle  
An electrically neutral baryon having a mass 2,183 times that of the electron and a mean lifetime of approximately 2.6 × 10-10 seconds. See Table at subatomic particle.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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