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poser (2)
poseur
posey
posh
posho
posit
positif
position
position audit
position day
position effect
position limit
position paper
position trading
positional notation
positive
positive discrimination
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positron
pos·i·tron [ pózzə tròn ] (plural pos·i·trons)


noun 
Definition:
 
electron antiparticle: an elementary particle of antimatter that has the same mass as an electron, but the opposite electrical charge
[Mid-20th century. Blend of positive + electron]
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