Pion Definition

pīŏn
pions
noun
pions
Any of three short-lived mesons that may be positive, negative, or neutral: pions have a mass c. 270 times that of an electron and play an important role in the binding forces within the nucleus of an atom.
Webster's New World
Synonyms:

Other Word Forms of Pion

Noun

Singular:
pion
Plural:
pions

Origin of Pion

  • From pi + -on, as alteration of pi-meson.

    From Wiktionary

  • Contraction of pi meson

    From American Heritage Dictionary of the English Language, 5th Edition

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