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e·lec·tron (ĭ-lĕk'trŏn')
n. (Abbr. e)
A stable subatomic particle in the lepton family having a rest mass of 9.1066 × 10 -28 grams and a unit negative electric charge of approximately 1.602 × 10 -19 coulombs.

[ELECTR(IC) + -ON1.]


logo The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved.

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