gram-moleculeOur editors are putting together more complete content — check back in about 20 minutesgram-moleculegram-molecule — noun名詞1. a mole, the amount of a substance with a mass equal to its molecular weight in g1.名詞釋義a mole, the amount of a substance with a mass equal to its molecular weight in grams例句The gram-molecule of water weighs about 18 grams.