top quark
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noun Physics.
a heavy quark having electric charge 2/3 times the elementary charge.
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Also called t quark, truth quark.
Origin of top quark
First recorded in 1975–80
Words nearby top quark
topper, toppie, topping, topping lift, topple, top quark, toprail, top round, tops, topsail, topsail schooner
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021
Example sentences from the Web for top quark
Scientific definitions for top quark
top quark
[ tŏp ]
A quark with a charge of +2/3. Its mass is larger than that of all the other quarks and is about 360,000 times that of the electron. See Table at subatomic particle.
The American Heritage® Science Dictionary
Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.