gram molecule(n = noun.quantity) mol, mole - the molecular weight of a substance expressed in grams; the basic unit of amount of substance adopted under the Systeme International d'Unites;
is a kind of metric weight unit, weight unit

dipole molecule, golden gram, gram, gram atom, gram calorie, gram method, gram stain, green gram, hans c. j. gram, horse gram, long-chain molecule, molecule, protein molecule, red gram