Definitions
from The American Heritage® Dictionary of the English Language, 5th Edition.
- noun The flavor of quark that has a charge of − 1/3 , has a mass about 8,220 times that of an electron, and belongs to the third generation of elementary fermions.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun A quark having a
fractional electric charge of -1/3 and amass about 4,100 to 4,400MeV . Symbol: b
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- noun a quark with a charge of -1/3 and a mass about 10,000 times that of an electron
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