Definitions
from The American Heritage® Dictionary of the English Language, 5th Edition.
- noun The electrically neutral nucleon, a baryon composed of two down quarks and one up quark, which has a mass 1,839 times that of an electron, is stable when bound in an atomic nucleus, but has a mean lifetime of 886 seconds as a free particle. It is a basic component of all atomic nuclei except the protium isotope of hydrogen.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun physics A
subatomic particle forming part of thenucleus of anatom and having nocharge ; it is a combination of anup quark and twodown quarks
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- noun an elementary particle with 0 charge and mass about equal to a proton; enters into the structure of the atomic nucleus
Etymologies
from The American Heritage® Dictionary of the English Language, 4th Edition
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Examples
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Apart from any surface contamination of the plant, the remaining radioactivity comes from "activation products" such as steel components that have been exposed to long-term neutron irradiation.
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Cosmo – A long-term neutron measurement project, under the tutelage of the late Dr. Jack Lockwood and Dr. Jim Ryan of UNH's Physics Department, Institute for the Study of Earth, Oceans, and Space.
Mount Washington 2009
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There were many problems in neutron diffusion such as finding the critical mass that required more careful formulations than had been carried out in the earliest projections.
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USEEM: With the name neutron Jack, as in a neutron bomb, buildings are left standing but the people are gone.
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About half of them found their careers in neutron scattering.
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During a hectic period between 1955 and 1960 Brockhouse's pioneering work was without parallel within neutron spectroscopy.
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With the crystal set at a suitable angle, a certain neutron wavelength can be selected.
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On the other hand, if a neutron is emitted the product of the reaction is not a known atom.
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The neutron is a heavy particle without any electric charge and of the same weight as the nucleus of an atom of hydrogen.
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The existence of the neutron is however only a recent discovery.
pterodactyl commented on the word neutron
A neutron walks into a bar and says "Hey, how much for a beer?"
The bartender replies "For you, no charge."
April 8, 2008
reesetee commented on the word neutron
Haha! Cracks me up every time.
An atom walks into a bar. "Hey, why so glum?" asks the bartender. "I think my electron left me," Atom says.
"Are you sure?" says the bartender.
"Yes. I'm positive."
April 8, 2008
plethora commented on the word neutron
Hee! The Chem student in me loves these!
April 8, 2008