from The American Heritage® Dictionary of the English Language, 5th Edition.

  • noun 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.

from the GNU version of the Collaborative International Dictionary of English.

  • noun (Physics) A neutron or proton, when contained within an atomic nucleus.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun One of the subatomic particles of the atomic nucleus, i.e. a proton or a neutron.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • noun a constituent (proton or neutron) of an atomic nucleus


from Wiktionary, Creative Commons Attribution/Share-Alike License

From nucleus.



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