| NOUN | process | pair formation, pair production, pair creation | the transformation of a gamma-ray photon into an electron and a positron when the photon passes close to an atomic nucleus |
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| Meaning | The transformation of a gamma-ray photon into an electron and a positron when the photon passes close to an atomic nucleus. | |
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| Synonyms | pair production, pair creation | |
| Broader | natural process, natural action, action, activity | A process existing in or produced by nature (rather than by the intent of human beings) |
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