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

One small study found that applying 56 milligrams of magnesium to the skin daily can increase magnesium levels in the blood and urine. —Health, 16 June 2025

Water hardness levels in Missouri River, Kansas City The U.S. Geological Survey found that the Missouri River had water hardness levels ranging from 250 to 300 milligrams per liter, which is considered very hard. —Zuri Primos, Kansas City Star, 13 June 2025

Most adult women need at least 1,000 to 1,200 milligrams of calcium daily. —Daryl Austin, USA Today, 7 June 2025

Around 7,300 milligrams of ALA Standard portion: 1 tbsp Oils made from flaxseed, chia seed, hempseed, canola, and soybeans are all great sources of ALA. —Sohaib Imtiaz, Verywell Health, 6 June 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