formula weight
- (of a molecule) molecular weight.
- (of an ionic compound that does not form molecules) the sum of the atomic weights of the atoms of the formula unit.
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Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
formula weight
- molecular weight
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The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.