1. (noun)gram, gramme, gm, g a metric unit of weight equal to one thousandth of a kilogram Synonyms: deoxyguanosine monophosphate, one thousand, constant of gravitation, gm, yard, gee, gibibyte, gravitational constant, guanine, universal gravitational constant, g, gigabyte, thou, grand, gramme, thousand, gram, g-force, chiliad
Synonyms and Antonyms of GM 
