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

Lower-potency products are typically 5 to 10 milligrams per gram of THC, study coauthor Tom Freeman, a professor in the department of psychology and director of the Addiction and Mental Health Group at the University of Bath in the United Kingdom, told me in an email. —Sandee Lamotte, CNN Money, 20 Apr. 2026

At the water’s edge, the contaminant level was 73 milligrams of arsenic per kilogram of soil, according to the CGRS report. —Noelle Phillips, Denver Post, 17 Apr. 2026

Each cannabis product intended for pets cannot contain more than 10 milligram of THC per serving, according to AB 1885. —Angela Rodriguez, Sacbee.com, 17 Apr. 2026

Each tablet contains 200 milligrams of ibuprofen and is one of the best over-the-counter pain relievers for those suffering from conditions such as muscular aches, minor arthritis pain, toothache, backache, menstrual cramps or minor aches. —Bestreviews, Chicago Tribune, 16 Apr. 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