Definitions

from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. A unit of pressure equal to one millionth of a bar.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A unit of pressure equal to one millionth of a bar

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. the absolute unit of pressure equal to one dyne per square centimeter

Etymologies

micro- +‎ bar (Wiktionary)

Examples

  • A microbar is one one-millionth of an Earth atmospheric pressure, so Pluto's surface pressure is between 1 / 300th and 1 / 1000th as on Mars's surface.

    Space News From SpaceDaily.Com

  • The now defunct microbar on Lavender Hill did a selection and they were worth crossing town for.

    British Blogs

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