omega meson

noun

, Physics.

1. a neutral and extremely short-lived meson having a mass 1532 times that of the electron and a mean lifetime of 6.6 X 10 -23 seconds.

omega meson

1. A neutral meson having a mass 1,532 times that of the electron and an average lifetime of 6.6 × 10 ^-23 seconds.
2. See Table at subatomic particle