1. A unit of mass equal to one thousandth of a gram, used in the metric system.
Usage: British spelling; American English typically uses 'milligram'; Commonly abbreviated as 'mg'

Examples

• The doctor prescribed 500 milligrammes of the antibiotic.
• Each tablet contains 10 milligrammes of the active ingredient.
• The scale can measure weights as small as one milligramme.
• A typical aspirin tablet weighs about 500 milligrammes.
• The nutritional label shows 2 milligrammes of sodium per serving.