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

In one study, participants were given 1,000 milligrams of vitamin C daily for two weeks. — Merve Ceylan, HEALTH, 17 Sep. 2026

The result may appear in parts per million (ppm), milligrams per liter (mg/L) or grains per gallon (gpg). — Ryan Brennan, Kansas City Star, 15 Sep. 2026

Hardness is usually reported in parts per million (ppm), milligrams per liter (mg/L) or grains per gallon (gpg). — Ryan Brennan, Miami Herald, 15 Sep. 2026

This includes fruits and vegetables, low-fat dairy, whole grains, and a reduced overall sodium intake to 2,300 milligrams or less a day. — Abby Norman, Verywell Health, 8 Sep. 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