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isallobar

[ ahy-sal-uh-bahr ]

noun

, Meteorology.
  1. a line on a weather map or chart connecting points having equal pressure changes.


isallobar

/ aɪˈsæləˌbɑː /

noun

  1. meteorol a line on a map running through places experiencing equal pressure changes
“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

isallobar

/ ī-sălə-bär′ /

  1. A line on a weather map connecting places having equal changes in atmospheric pressure within a given period of time. Isallobars measure pressure tendency, a value that describes both the difference in barometric pressure at the beginning and end of a given time period as well as the pattern—falling, rising, or steady—of pressure change.
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Word History and Origins

Origin of isallobar1

1910–15; is- + allo- + Greek báros “weight” ( isobar ( def ) )

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