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gram-atomic weight
Variant of gram atom
Chem. the quantity of an element having a weight in grams numerically equal to the element's atomic weight: a gram atom of copper, the atomic weight of which is 63.54, is a quantity of copper weighing 63.54 grams
also gram-atomic weight
Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio. Used by arrangement with John Wiley & Sons, Inc.