top quark
nounPhysics.
a heavy quark having electric charge 2/3 times the elementary charge.
Origin of top quark
1First recorded in 1975–80
- Also called t quark, truth quark.
Words Nearby top quark
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
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.
Browse