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apoth'ecaries' weight"




a system of weights used chiefly in compounding and dispensing drugs: 20 grains = 1 scruple (§); 3 scruples = 1 dram (?); 8 drams = 1 ounce (oz.); 12 ounces = 1 pound. The grain, ounce, and pound are the same as in troy weight, the grain alone being the same as in avoirdupois weight.

Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.

apothecaries' measureapothecary
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