Definition of millibar in English:

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Pronunciation: /ˈmiləˌbär/


One thousandth of a bar, the cgs unit of atmospheric pressure equivalent to 100 pascals.
Example sentences
  • The world record for the lowest tropical cyclone pressure is 870 millibars in Typhoon Tip in the northwest Pacific Ocean on Oct. 12, 1979.
  • When you multiply by inches of mercury and divide by millibars, the millibars cancel out and you're left with inches of mercury.
  • If the barometric pressure suddenly drops from, say, a normal reading of 1,000 millibars to 900 millibars, a very powerful wind will result.

For editors and proofreaders

Syllabification: mil·li·bar

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