G (gram)
Symbol for gram, a unit of measurement of weight and mass in the metric system.
In weight, a gram is equal to a thousandth of a kilogram.
In mass, a gram is equal to a thousandth of a liter (one cubic centimeter) of water at 4 degrees centigrade.</P> The word 'gram' comes from the Late Latin 'gramma' meaning a small weight via the French 'gramme.' The abbreviation for gram is gm.