one thousandth of a gram
WordReference Random House Learner's Dictionary of American English © 2025
mil•li•gram /ˈmɪlɪˌgræm/USA pronunciation
n. [countable]
WordReference Random House Unabridged Dictionary of American English © 2025- Weights and Measuresa unit of mass or weight equal to 1&sfracdenom;1000&sfracend; of a gram. Abbr.: mg Also,[esp. Brit.,] ˈmil•liˌgramme.
mil•li•gram
(mil′i gram′),USA pronunciation n.
- Weights and Measuresa unit of mass or weight equal to one thousandth of a gram, and equivalent to 0.0154 grain. Abbr.: mg Also,[esp. Brit.,] mil′li•gramme′.
- French milligramme. See milli-, -gram2
- 1800–10
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'milligram' also found in these entries (note: many are not synonyms or translations):