isobar

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noun iso·bar \ˈī-sə-ˌbär\

Definition of isobar

  1. 1 :  an imaginary line or a line on a map or chart connecting or marking places of equal barometric pressure

  2. 2 :  one of two or more atoms or elements having the same atomic weights or mass numbers but different atomic numbers

Recent Examples of isobar from the Web

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

Illustration of isobar

Origin and Etymology of isobar

International Scientific Vocabulary is- + -bar (from Greek baros weight); akin to Greek barys heavy — more at grieve


ISOBAR Defined for Kids

isobar

play
noun iso·bar \ˈī-sə-ˌbär\

Definition of isobar for Students

  1. :  a line on a map to indicate areas having the same atmospheric pressure


Medical Dictionary

isobar

play
noun iso·bar \ˈī-sə-ˌbär\

Medical Definition of isobar

  1. :  one of two or more atoms or elements having the same atomic weights or mass numbers but different atomic numbers


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