millibar

noun

mil·​li·​bar ˈmi-lə-ˌbär 

: a unit of atmospheric pressure equal to 1/1000 bar or 100 pascals

Examples of millibar in a Sentence

Recent Examples on the Web

The storm's minimum central pressure, a measure closely tied to its strength, was 903 millibars, which indicates rare power. —Kathryn Prociv, NBC news, 28 Oct. 2025

With a central pressure of 892 millibars, Melissa is now tied as the third most intense storm in Atlantic history, according to the National Hurricane Center. —Hannah Parry, MSNBC Newsweek, 28 Oct. 2025

The Category 5 hurricane has winds of 185 miles per hour and a central pressure of 892 millibars, placing it in a tie with the 1935 Labor Day hurricane as the third most intense storm ever measured in the Atlantic. —Andrea Thompson, Scientific American, 28 Oct. 2025

The air pressure had plummeted from a measure of 901 millibars to 892 millibars. —Dinah Voyles Pulver, USA Today, 27 Oct. 2025

Word History

Etymology

International Scientific Vocabulary

First Known Use

1910, in the meaning defined above

Rhymes for millibar

• abattoir
• alcazar
• autocar
• avatar
• belshazzar
• caviar
• caviare
• cinnabar
• commissar
• condylar
• deodar
• handlebar

Kids Definition

millibar

noun

mil·​li·​bar ˈmil-ə-ˌbär 

: a unit used in measuring atmospheric pressure equal to ¹⁄₁₀₀₀ bar

Medical Definition

millibar

noun

mil·​li·​bar ˈmil-ə-ˌbär 

: a unit of atmospheric pressure equal to ¹/₁₀₀₀ bar or 1000 dynes per square centimeter

—abbreviation mbar