<unit> The amount of a substance with a mass in grams equal to its molecular weight; e.g., a gram-molecule of hydrogen weighs 2.016 g, that of water 18.015 g. ... (05 Mar 2000) ... Found on http://www.encyclo.co.uk/local/20973
Type: Term Definitions: 1. the amount of a substance with a mass in grams equal to its molecular weight; a gram-molecule of dihydrogen weighs 2.016 g, that of water 18.015 g. Found on http://www.medilexicon.com/medicaldictionary.php?t=55737