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Definition of Metric grain
1. Noun. A weight unit used for pearls or diamonds: 50 mg or 1/4 carat.
Exact synonyms: Grain
Generic synonyms: Metric Weight Unit, Weight Unit
Terms within: Mg, Milligram
Group relationships: Decigram, Dg
Generic synonyms: Metric Weight Unit, Weight Unit
Terms within: Mg, Milligram
Group relationships: Decigram, Dg