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单词 apothecaries' weight
释义

WordReference Random House Unabridged Dictionary of American English © 2024
apothecaries' weight′, 
  1. a system of weights used chiefly in compounding and dispensing drugs: 20 grains = 1 scruple (℈);
    3 scruples = 1 dram ();
    8 drams = 1 ounce );
    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.
  • 1755–65

Collins Concise English Dictionary © HarperCollins Publishers::
apothecaries' weight n
  1. a system of weights, formerly used in pharmacy, based on the Troy ounce, which contains 480 grains. 1 grain is equal to 0.065 gram
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