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Meaning of elementary charge

el'emen'tary charge'

Pronunciation: [key]
— Physics. Physics.
  1. the unit of electric charge of which all free charges found in nature are integral multiples, equal to 1.602 × 10 coulombs, the charge of the proton.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.