1. the molecular weight of a substance expressed in grams; the basic unit of amount of substance adopted under the Systeme International d'Unites; [syn: gram molecule, mole, mol]
WordNet (r) 3.0 (2006):
gram molecule
n 1: the molecular weight of a substance expressed in grams; the
basic unit of amount of substance adopted under the Systeme
International d'Unites [syn: gram molecule, mole,
mol]