apothecaries' unit


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Noun1.apothecaries' unit - any weight unit used in pharmacyapothecaries' unit - any weight unit used in pharmacy; an ounce is equal to 480 grains and a pound is equal to 12 ounces
weight unit, weight - a unit used to measure weight; "he placed two weights in the scale pan"
grain - 1/60 dram; equals an avoirdupois grain or 64.799 milligrams
scruple - a unit of apothecary weight equal to 20 grains
drachm, drachma, dram - a unit of apothecary weight equal to an eighth of an ounce or to 60 grains
apothecaries' ounce, ounce, troy ounce - a unit of apothecary weight equal to 480 grains or one twelfth of a pound
apothecaries' pound, troy pound - an apothecary weight equal to 12 ounces or 373.242 grams