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

This box has nearly 500 milligrams of sodium per 1/2 cup of prepared stuffing. —Sarah Martens, Better Homes & Gardens, 8 Nov. 2025

According to California Detox, a California drug and alcohol rehabilitation center, the standard dose of Adderall to treat ADHD is between 5 and 40 milligrams a day. —David Goodhue, Miami Herald, 5 Nov. 2025

While previous methods produced only a few milligrams of pigment per liter, the new system yields up to three grams per liter. —Sujita Sinha, Interesting Engineering, 3 Nov. 2025

Most adults need between 8-27 milligrams (mg) of iron and 600-800 international units (IU) of vitamin D daily from all sources, including food and supplements. —Jennifer Lefton, Verywell Health, 3 Nov. 2025

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