WordReference Random House Unabridged Dictionary of American English © 2026
gram′ mol′ecule, [Chem.]
  1. Chemistrythat quantity of a substance whose weight in grams is numerically equal to the molecular weight of the substance. Cf. Avogadro's number.
  • 1890–95
gram-mo•lec•u•lar  (gram′mə lek′yə lər),USA pronunciation gram-mo•lar  (gram′mō′lər),USA pronunciation adj. 
Collins Concise English Dictionary © HarperCollins Publishers::
gram molecule, gram-molecular weight
  1. an amount of a compound equal to its molecular weight expressed in grams: now replaced by the mole
    See mole4
'gram molecule' also found in these entries (note: many are not synonyms or translations):
Avogadro's number - critical volume - gram-molecular weight - ideal gas law - mole - molecule - universal gas constant

Forum discussions with the word(s) "gram molecule" in the title:


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