pion

noun pi·on \ ˈpī-ˌän \

Definition of pion

:a meson that is a combination of up and down quarks and antiquarks, that may be positive, negative, or neutral, and that has a mass about 270 times that of the electron

pionic

play \pī-ˈä-nik\ adjective

Recent Examples of pion from the Web

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Origin and Etymology of pion

contraction of pi-meson


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