millibar

noun

mil·​li·​bar ˈmi-lə-ˌbär How to pronounce millibar (audio)
: a unit of atmospheric pressure equal to ¹/₁₀₀₀ bar or 100 pascals

Examples of millibar in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
In addition to millibars, pressure is sometimes measured using a unit called atmosphere (atm). Joseph Hernandez, Kansas City Star, 5 Mar. 2025 These storms usually batter the coastal states and occur when a storm rapidly intensifies, and its central barometric pressure drops at least 24 millibars in 24 hours. Joyce Orlando, The Tennessean, 19 Nov. 2024 The central pressure in Tuesday's storm fell 1.71 inches, or 58 millibars, according to AccuWeather, representing more than double the intensity criteria required to classify as a bomb cyclone. Gabe Hauari, USA TODAY, 21 Nov. 2024 Generally, the atmospheric pressure of the storm must drop by at least 24 millibars to be classified as a bomb cyclone, the weather service stated. Michael Salerno, The Arizona Republic, 21 Nov. 2024 See All Example Sentences for millibar

Word History

Etymology

International Scientific Vocabulary

First Known Use

1910, in the meaning defined above

Time Traveler
The first known use of millibar was in 1910

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Cite this Entry

“Millibar.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/millibar. Accessed 12 Mar. 2025.

Kids Definition

millibar

noun
mil·​li·​bar ˈmil-ə-ˌbär How to pronounce millibar (audio)
: a unit used in measuring atmospheric pressure equal to ¹⁄₁₀₀₀ bar

Medical Definition

millibar

noun
mil·​li·​bar ˈmil-ə-ˌbär How to pronounce millibar (audio)
: a unit of atmospheric pressure equal to ¹/₁₀₀₀ bar or 1000 dynes per square centimeter
abbreviation mbar

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