eta meson

noun

Definition of eta meson 

: an uncharged elementary particle with zero spin that has a mass 1074 times the mass of an electron and that decays rapidly especially into pions

called also eta particle

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History and Etymology for eta meson

eta entry 1

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Dictionary Entries near eta meson

et al.

et alia

etalon

eta meson

etamine

Etanim

etaoin shrdlu

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