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

Mitch bottomed out with a minimum central pressure of 905 millibars … the fourth-lowest pressure ever recorded for a hurricane in the Atlantic basin this century. —Doyle Rice, USA Today, 10 Oct. 2025

The storm carries maximum sustained winds of 45 mph with higher gusts and a minimum central pressure of 1002 millibars. Movement and Forecast Track: Priscilla is moving northwest at 7 mph. —Adeola Adeosun, MSNBC Newsweek, 4 Oct. 2025

They were then blown by different wind speeds and all under a low surface pressure of 17 millibars to mimic conditions on the Red Planet. —Keith Cooper, Space.com, 30 Sep. 2025

Although the Category of a hurricane is based on its sustained winds, a more accurate measurement of a storm's intensity is its central pressure, measured in millibars. —Eric Berger, ArsTechnica, 16 Aug. 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