apothecaries' ounce
a unit of apothecary weight equal to 480 grains or one twelfth of a pound • Syn: ounce, troy ounce • Hypernyms: apothecaries' unit, apothecaries' weight, troy unit • Part Holonyms: troy pound, apothecaries' pound • Part Meronyms: pennyweight, dram, drachm, drachma
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