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pair production

n.
1.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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Word of the Day

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  • pair off
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  • pair of virginals
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  • pair of tweezers
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  • pair of tongs
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  • pair of scissors
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  • pair of pliers
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  • pair of pincers
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  • pair formation
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  • pair creation
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  • pair
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  • pairing
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  • paisa
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  • paisley
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  • paiute
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  • paiwanic
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  • pajamas
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  • pakchoi
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  • pakistan
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  • pakistani
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  • pakistani monetary unit
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  • tulostomatales
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  • polar hare
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  • destalinization
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  • tackiness
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  • upending
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  • shortness
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  • sympathy
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  • duncan grant
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  • tuvalu
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  • suricata suricatta
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    Idiom of the Day

    toing and froing (about something)
    to be moving back and forth on an issue, to be changing one's mind about something
    My father and mother have been toing and froing for several weeks about whether or not they will go to Europe for a holiday.



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