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Either of the two fermions (the proton and the neutron). Nucleons have one-half unit of spin and are basic components of all atomic nuclei.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
(General Physics) a proton or neutron, esp one present in an atomic nucleus
[C20: from nucle(us) + -on]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
nu•cle•on(ˈnu kliˌɒn, ˈnyu-)
a proton or neutron, esp. when considered as a component of a nucleus.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
A proton or a neutron, especially as part of an atomic nucleus.
The American Heritage® Student Science Dictionary, Second Edition. Copyright © 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
A proton or neutron.
Dictionary of Unfamiliar Words by Diagram Group Copyright © 2008 by Diagram Visual Information Limited
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|Noun||1.||nucleon - a constituent (proton or neutron) of an atomic nucleus|
antineutron - the antiparticle of a neutron
antiproton - an unstable negatively charged proton; the antiparticle of a proton
baryon, heavy particle - any of the elementary particles having a mass equal to or greater than that of a proton and that participate in strong interactions; a hadron with a baryon number of +1
neutron - an elementary particle with 0 charge and mass about equal to a proton; enters into the structure of the atomic nucleus
nucleus - the positively charged dense center of an atom
proton - a stable particle with positive charge equal to the negative charge of an electron
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