metric system - a decimal system of weights and measures based on the meter and the kilogram and the second

metric unit, metric - a decimal unit of measurement of the metric system (based on meters and kilograms and seconds); "convert all the measurements to metric units"; "it is easier to work in metric"

mass unit - a unit of measurement for mass

mcg, microgram - one millionth (1/1,000,000) gram

mg, milligram - one thousandth (1/1,000) gram

nanogram, ng - one billionth (1/1,000,000,000) gram

metric grain, grain - used for pearls or diamonds: 50 mg or 1/4 carat

decigram, dg - 1/10 gram

carat - a unit of weight for precious stones = 200 mg

g, gm, gram, gramme - a metric unit of weight equal to one thousandth of a kilogram

gram atom, gram-atomic weight - the quantity of an element whose weight in grams is numerically equal to the atomic weight of the element

gram molecule, mol, mole - the molecular weight of a substance expressed in grams; the basic unit of amount of substance adopted under the Systeme International d'Unites

dag, decagram, dekagram, dkg - 10 grams

hectogram, hg - 100 grams

kg, kilo, kilogram - one thousand grams; the basic unit of mass adopted under the Systeme International d'Unites; "a kilogram is approximately 2.2 pounds"

myg, myriagram - one ten thousandth of a centner

centner - in some European countries: a unit of weight equivalent to 50 kilograms

centner, doppelzentner, hundredweight, metric hundredweight - a unit of weight equal to 100 kilograms

quintal - a unit of weight equal to 100 kilograms

metric ton, MT, tonne, t - a unit of weight equivalent to 1000 kilograms

unit, unit of measurement - any division of quantity accepted as a standard of measurement or exchange; "the dollar is the United States unit of currency"; "a unit of wheat is a bushel"; "change per unit volume"

troy unit - any of the unit of the troy system of weights

apothecaries' unit, apothecaries' weight - any weight unit used in pharmacy; an ounce is equal to 480 grains and a pound is equal to 12 ounces

arroba - a unit of weight used in some Spanish speaking countries

cattie, catty - any of various units of weight used in southeastern Asia (especially a Chinese measure equal to 500 grams)

crith - the weight of a liter of hydrogen (at 0 Centigrade and 760 millimeters pressure)

frail - the weight of a frail (basket) full of raisins or figs; between 50 and 75 pounds

last - a unit of weight equal to 4,000 pounds

maund - a unit of weight used in Asia; has different values in different countries; "the official maund in India is 82.6 pounds avoirdupois"

obolus - a Greek unit of weight equal to one tenth of a gram

oka - a Turkish unit of weight equal to about 2.75 pounds

picul - a unit of weight used in some parts of Asia; approximately equal to 133 pounds (the load a grown man can carry)

pood - a Russian unit of weight equal to approximately 36 pounds

rotl - a unit of weight used in some Moslem countries near the Mediterranean; varies between one and five pounds

tael - a unit of weight used in east Asia approximately equal to 1.3 ounces

tod - a unit of weight for wool equal to about 28 pounds

welterweight - a weight of 28 pounds; sometimes imposed as a handicap in a horse race (such as a steeple chase or hurdle race)