- that quantity of a substance whose weight in grams is numerically equal to the molecular weight of the substance.
Compare Avogadro's number.
Origin of gram molecule
First recorded in 1890–95
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
- an amount of a compound equal to its molecular weight expressed in grams: now replaced by the moleSee mole 4
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