Element
proton
pro·ton [ proh-ton ]
Subclass of:
Nucleons;
Hydrogen
Definitions related to protons:
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A fundamental particle with a positive charge.NCI ThesaurusU.S. National Cancer Institute, 2021
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A small, positively charged particle of matter found in the atoms of all elements. Streams of protons generated by special equipment can be used for radiation treatment.NCI Dictionary of Cancer TermsU.S. National Cancer Institute, 2021
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Stable elementary particles having the smallest known positive charge, found in the nuclei of all elements. The proton mass is less than that of a neutron. A proton is the nucleus of the light hydrogen atom, i.e., the hydrogen ion.NLM Medical Subject HeadingsU.S. National Library of Medicine, 2021
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(hydrogen ion) The nucleus of the light hydrogen atom; stable elementary particles having the smallest known positive charge, found in the nuclei of all elements.CRISP ThesaurusNational Institutes of Health, 2006
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