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Pion

see synonyms of pion

Noun

1. pi-meson, pion

a meson involved in holding the nucleus together; produced as the result of high-energy particle collision

WordNet Lexical Database for English. Princeton University. 2010.

Pion

see synonyms of pion
noun
physics
a meson having a positive or negative charge and a rest mass 273.13 times that of the electron, or no charge and a rest mass 264.14 times that of the electron

Collins English Dictionary. Copyright © HarperCollins Publishers

Pion

see synonyms of pion
noun
Particle Physics
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 College Dictionary, 4th Edition. Copyright © 2010 by Houghton Mifflin Harcourt. All rights reserved.

Pion

see synonyms of pion
n.
Any of the three least massive mesons, having a positive, neutral, or negative electric charge. The charged pions have a mass 273 times that of an electron and a mean lifetime of 2.6 × 10-8 second, and the neutral pion has a mass 264 times that of an electron and a mean lifetime of 8.4 × 10-17 second. Also called pi meson.

The American Heritage ® Dictionary of the English Language, Fifth Edition copyright ©2018 by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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