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

That's when a storm drops at least 24 millibars in pressure in 24 hours. — Arkansas Online, 23 Feb. 2026

That’s when a storm drops at least 24 millibars in pressure in 24 hours. — Anthony Izaguirre, Los Angeles Times, 22 Feb. 2026

The pressure would need to drop at least 24 millibars in 24-hours within the storm. — Cutter Martin, CBS News, 30 Jan. 2026

Typically, the rate is around 1 millibar per hour for 24 hours. — Marshall Shepherd, Forbes.com, 24 Feb. 2026

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