milligram

noun

mil·​li·​gram ˈmi-lə-ˌgram 

: a unit of mass equal to 1/1000 gram see Metric System Table

Examples of milligram in a Sentence

Recent Examples on the Web

If the water measures below 250 milligrams of ‘total dissolved solids’ per liter, that’s the green light. — Simon Heptinstall, New Atlas, 9 July 2026

Heavy rains that reached over a foot in some locations during the July 4 holiday weekend initially diluted nitrate levels, CIWW said, dropping them to 4 milligrams per liter in the Raccoon River. — Donnelle Eller, Des Moines Register, 9 July 2026

Heiss noted that participants consumed about 500 to 600 milligrams of flavan-3-ols daily. — Maggie O'Neill, Verywell Health, 7 July 2026

So in August 2025, the Ayvakit dose was increased again to 125 milligrams. — Shannon Dingey, Health, 1 July 2026

Word History

Etymology

French milligramme, from milli- + gramme gram

First Known Use

1797, in the meaning defined above

Rhymes for milligram

• abraham
• anagram
• cablegram
• cofferdam
• dendrogram
• diagram
• diaphragm
• epigram
• hexagram
• histogram
• hologram
• instagram

Kids Definition

milligram

noun

mil·​li·​gram ˈmil-ə-ˌgram 

: a weight equal to ¹⁄₁₀₀₀ gram see metric system

Medical Definition

milligram

noun

mil·​li·​gram

variants or chiefly British milligramme

-ˌgram 

: one thousandth of a gram

—abbreviation mg