EECR

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English[edit]

Noun[edit]

EECR (plural EECRs)

  1. (astronomy, physics) Initialism of extremely energetic cosmic ray/extreme-energy cosmic ray.: A cosmic ray particle exceeding the GZK limit.
    Hypernym: cosmic ray
    Hyponym: OMG Particle
    Coordinate terms: zevatron, GZK limit
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