- metric weight unit, weight unit - a decimal unit of weight based on the gram
--1 is a kind of mass unit; metric unit, metric
--1 is a part of metric system
--1 has particulars:microgram, mcg; milligram, mg; nanogram, ng; grain, metric grain; decigram, dg; carat; gram, gramme, gm, g; gram atom, gram-atomic weight; gram molecule, mole, mol; dekagram, decagram, dkg, dag; hectogram, hg; kilogram, kg, kilo; myriagram, myg; centner; hundredweight, metric hundredweight, doppelzentner, centner; quintal; metric ton, MT, tonne, t