Troy weight

noun

Definitions

Noun
  1. 1
    A system of units of weight or mass, mostly used for precious metals and gemstones, in which the pound contains twelve ounces which each contain 480 grains.
  2. 2
    a system of weights used for precious metals and gemstones; based on a 12-ounce pound and an ounce of 480 grains wordnet

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