Noun: gm
- A metric unit of weight equal to one thousandth of a kilogram
"A paperclip weighs about one gm";
- gram, gramme, g
- (of an animal or plant, esp. as food) having genetic material that has been changed using genetic engineering
"The debate over GM crops continues to be controversial";
- genetically modified
Derived forms: gms
Type of: metric weight unit, weight unit
Part of: dag [archaic], decagram, dekagram [N. Amer], jag
Encyclopedia: Gm
GM