mil·​li·​bar | \ ˈmi-lə-ˌbär How to pronounce millibar (audio) \

Definition of millibar

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

Examples of millibar in a Sentence

Recent Examples on the Web

Its low pressure of 911 millibars tops Hurricane Andrew’s pressure in 1992, and it’s been maintaining a shockingly uniform shape as satellite images have shown, report the Washington Post’s Jason Samenow and Ian Livingston. Rachael Lallensack, Smithsonian, "Hurricane Dorian Batters the Bahamas Before Barreling Along the U.S. Coast," 4 Sep. 2019 The intensity was based on the minimum central pressure reading of 892.3 millibars, which was a record for a U.S. landfall hurricane. Doyle Rice, USA TODAY, "Hurricanes have been an unwanted Labor Day visitor to Florida for decades," 30 Aug. 2019 The central pressure of the storm has to drop at the rate of one millibar per hour for at least 24 hours. Matthew Cappucci, Washington Post, "This researcher helped coin the term ‘bomb cyclone.’ He did it to keep people safe.," 4 Jan. 2018 Since the start of the storm on Tuesday, the pressure has already dropped 27 millibars, which means the storm is in hurricane territory. Amanda Garrity, Good Housekeeping, "A Bomb Cyclone Will Slam 70 Million People Across the U.S. Because Winter Just Won't Quit," 13 Mar. 2019 This particular storm is said to drop 970 millibars, which would match it with a Category 2 Atlantic hurricane. Elizabeth Gulino, House Beautiful, "What You Should Do to Prepare for the Bomb Cyclone That's Coming," 13 Mar. 2019 This storm’s pressure fell at more than twice that rate: 59 millibars in 24 hours, which put it into the upper echelon of the most explosive East Coast storms ever observed. Jason Samenow, Washington Post, "The ‘bomb cyclone’ by the numbers: Here’s how much snow, wind and flooding it unleashed," 5 Jan. 2018 Its central pressure of just 882 millibars set the record for lowest central pressure of any Atlantic hurricane on record. Eric Berger, Ars Technica, "Hurricane Michael is a rare, but not unprecedented, October storm," 8 Oct. 2018 At the same time, a newly developing coastal storm was forming over the Delmarva, with pressure dropping at a rate of two millibars per hour. Jeff Halverson, Washington Post, "A mighty wind: Behind one of Washington’s worst-ever winter wind storms," 5 Mar. 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'millibar.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of millibar

1910, in the meaning defined above

History and Etymology for millibar

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Last Updated

13 Sep 2019

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Time Traveler for millibar

The first known use of millibar was in 1910

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mil·​li·​bar | \ ˈmil-ə-ˌbär How to pronounce millibar (audio) \

Medical Definition of millibar

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

More from Merriam-Webster on millibar

Rhyming Dictionary: Words that rhyme with millibar Encyclopedia article about millibar

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readily or continually undergoing change

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