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painter (3)
painterly
painting
paintwork
pair
pair bond
pair-oar
pair-off
pair production
pairing
País Vasco
paisa
paisano
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pair production

pair pro·duc·tion


noun 
Definition:
 
creation of negative particle: the creation of a negative particle electron and a positive particle positron when a fast particle photon passes through a strong electrical field such as that surrounding an atomic nucleus

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