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ANTIPARTICLE

“ANTIPARTICLE” is a valid word.

16 Scrabble points
20 Words with Friends
12 letters

Definition

noun

  1. a particle that has the same mass as another particle but has opposite values for its other properties; interaction of a particle and its antiparticle results in annihilation and the production of radiant energy

< 12-letter words: ANTIPARTICLE