Definition of milligram noun from the Oxford Advanced Learner's Dictionary



(British English also milligramme) noun
BrE BrE//ˈmɪliɡræm//
; NAmE NAmE//ˈmɪliɡræm//
(abbreviation mg)
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a unit for measuring weight; a 1 000th of a gram The driver was well above the limit of 80 milligrams of alcohol per 100 millilitres of blood
See the Oxford Advanced American Dictionary entry: milligram