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View synonyms for isobar

isobar

[ ahy-suh-bahr ]

noun

  1. Meteorology. a line drawn on a weather map or chart that connects points at which the barometric pressure is the same.
  2. Also i·so·bare [] Physics, Chemistry. one of two or more atoms having equal atomic weights but different atomic numbers.


isobar

/ ˈaɪsəʊˌbɑː /

noun

  1. a line on a map connecting places of equal atmospheric pressure, usually reduced to sea level for purposes of comparison, at a given time or period
  2. physics any of two or more atoms that have the same mass number but different atomic numbers Compare isotope

    tin-115 and indium-115 are isobars

“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012


isobar

/ īsə-bär′ /

  1. A line drawn on a weather map connecting places having the same atmospheric pressure. The distance between isobars indicates the barometric gradient (the degree of change in atmospheric pressure) across the region shown on the map. When the lines are close together, a strong pressure gradient is indicated, creating conditions for strong winds. When the lines are far apart, a weak pressure gradient is indicated and calm weather is forecast.


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Derived Forms

  • ˈisobarˌism, noun
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Other Words From

  • iso·barism noun
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Word History and Origins

Origin of isobar1

First recorded in 1860–65; from Greek isobarḗs “of equal weight,” from ísos ( iso- ( def ) ) + báros “weight” ( bar 3( def ) )
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Word History and Origins

Origin of isobar1

C19: from Greek isobarēs of equal weight, from iso- + baros weight
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Example Sentences

The most common value-added analyses on surface maps are isobars, pressure systems, and boundaries.

Agency execs from Dentsu shops like Isobar, 360i and Merkle will also contribute to the practice.

From Digiday

In most cases the 29.80-inch isobar furnishes a good limit, out to which the isobars may be traced.

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isoantigenisobaric