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atomic mass unit definition

atomic mass unit

a unit of mass, exactly one twelfth the mass of a neutral atom of the most abundant isotope of carbon, C: one atomic mass unit equals 1.6605 x 10 gram and is equivalent to 931.48 MeV in energy: symbol amu or u

Webster's New World College Dictionary Copyright © 2009 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

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