Dictionary
molecular weight
noun
Definition of MOLECULAR WEIGHT
: the average mass of a molecule of a compound compared to 1⁄12 the mass of carbon 12 and calculated as the sum of the atomic weights of the constituent atoms
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First Known Use of MOLECULAR WEIGHT
1869
Medical Dictionary
molecular weight
noun
Medical Definition of MOLECULAR WEIGHT
: the mass of a molecule that may be calculated as the sum of the atomic weights of its constituent atoms
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