Noun troy unit has 1 sense
  1. troy unit - any of the unit of the troy system of weights
    --1 is a kind of
    weight unit, weight
    --1 is a part of troy, troy weight
    --1 has particulars:
     grain; pennyweight; ounce, troy ounce, apothecaries' ounce; troy pound, apothecaries' pound
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