mass unit

/mæs ˌjunət/

Definitions of mass unit

1. noun

   a unit of measurement for mass
   types:

   atomic mass unit

   unit of mass for expressing masses of atoms or molecules

   mass number, nucleon number

   the sum of the number of neutrons and protons in an atomic nucleus

   avoirdupois unit

   any of the units of the avoirdupois system of weights

   metric weight unit, weight unit

   a decimal unit of weight based on the gram

   slug

   a unit of mass equal to the mass that accelerates at 1 foot/sec/sec when acted upon by a force of 1 pound; approximately 14.5939 kilograms

   grain

   1/7000 pound; equals a troy grain or 64.799 milligrams

   dram

   1/16 ounce or 1.771 grams

   ounce, oz.

   a unit of weight equal to one sixteenth of a pound or 16 drams or 28.349 grams

   lb, pound

   16 ounces avoirdupois

   half pound

   8 ounces avoirdupois

   quarter pound

   4 ounces avoirdupois

   stone

   an avoirdupois unit used to measure the weight of a human body; equal to 14 pounds

   quarter

   a quarter of a hundredweight (25 pounds)

   cwt, hundredweight, long hundredweight

   a British unit of weight equivalent to 112 pounds

   cental, centner, cwt, hundredweight, quintal, short hundredweight

   a United States unit of weight equivalent to 100 pounds

   gross ton, long ton, ton

   a British unit of weight equivalent to 2240 pounds

   net ton, short ton, ton

   a United States unit of weight equivalent to 2000 pounds

   kiloton

   one thousand tons

   megaton

   one million tons

   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

   grain, metric grain

   a weight unit 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

   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

   MT, metric ton, t, tonne

   a unit of weight equivalent to 1000 kilograms

   type of:

   unit, unit of measurement

   any division of quantity accepted as a standard of measurement or exchange