beauty-quark

beauty quark

noun Physics.
Dictionary.com Unabridged

bottom quark

noun Physics.
the quark having electric charge −1/3 times the elementary charge and bottom quantum number −1. It is more massive than the up, down, strange, and charmed quarks.
Also called beauty quark, b quark, b-quark.


Origin:
1975–80

Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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American Heritage
Science Dictionary
beauty quark   (by'tē)  Pronunciation Key 
See bottom quark.
bottom quark   (bŏt'əm)  Pronunciation Key 
A quark with a charge of - 1/3 . Its mass is smaller than that of the top quark, but larger than that of all the other quarks. The bottom quark is sometimes referred to as the beauty quark, though this term is falling out of use. See Table at subatomic particle.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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