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antiparticle

an·ti·par·ti·cle

antiparticle

 
pronunciation:
aen ti par tih kl
features:
Word Combinations (noun)
part of speech: noun
definition: in physics, either of two subatomic particles that have the same mass, spin, degree of charge, and magnetic moment, but that have opposite signs of charge and directions of magnetic moment and whose collision causes mutual annihilation.
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