English

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Etymology

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Morphologically, from Troyes, town in Northern France + grain, unit of mass

Noun

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troy grain (plural troy grains)

  1. A unit of mass, equal to 1/24 of a pennyweight or 1/480 of a troy ounce, fixed at 0.064 798 91 grams under the metric system.
    Synonym: grain
    Hypernym: grain
    Coordinate terms: troy ounce, troy pound