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

The guidelines recommend statins, a type of medication designed to lower cholesterol, for adults 30 and older with LDL cholesterol levels of 160 milligrams per deciliter of blood or higher. —Lindsey Leake, NBC news, 13 Mar. 2026

The American Heart Association recommends choosing foods with 140 milligrams or less of sodium per serving. —Sherri Gordon, Health, 13 Mar. 2026

Consuming more than 350 milligrams of supplemental magnesium can lead to magnesium toxicity, which can cause symptoms including low blood pressure, vomiting, irregular heartbeat, difficulty breathing and cardiac arrest. —Kristen Rogers, CNN Money, 13 Mar. 2026

In addition to being high in protein, adzuki beans are extraordinarily high in potassium, providing 610 milligrams (mg) per half-cup serving. —Jennifer Lefton, Verywell Health, 13 Mar. 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