proton
IPA: prˈoʊtɑn
noun
- (physics) A positively charged subatomic particle forming part of the nucleus of an atom and determining the atomic number of an element, composed of two up quarks and a down quark.
- The atomic nucleus of protium (hydrogen-1)
- (obsolete, anatomy) Synonym of primordium
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Examples of "proton" in Sentences
- The device is called a proton precession magnetometer.
- Long-term proton pump inhibitor therapy and risk of hip fracture.
- One proton is just like another; but sodium and chlorine are distinct because of the number and arrangement of these parts.
- Taking away or adding just one proton from the nucleus of an element would turn it into a completely different element with completely different properties.
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