Oh-My-God particle

== English == === Alternative forms === Oh-My-God Particle, oh-my-god particle, oh my god particle, Oh My God Particle, Oh My God particle === Proper noun === Oh-My-God particle (plural Oh-My-God particles) (astronomy, physics) An ultra-high-energy cosmic ray detected in 1991, of uncertain nature, which exceeds the GZK limit; the highest energy particle ever discovered. Synonyms: OMG Particle, OMG particle ==== Hypernyms ==== ==== Coordinate terms ==== ==== Related terms ====