metric grain

English Thesaurus

1. a weight unit used for pearls or diamonds: 50 mg or 1/4 carat (noun.quantity)

hypernym	:	metric weight unit, weight unit,
definition	:	a decimal unit of weight based on the gram (noun.quantity)

part holonym	:	mg, milligram,
definition	:	one thousandth (1/1,000) gram (noun.quantity)

part meronym	:	decigram, dg,
definition	:	1/10 gram (noun.quantity)