isallobar

[ ahy-sal-uh-bahr ]
/ aɪˈsæl əˌbɑr /

noun Meteorology.

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

Origin of isallobar

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

Words nearby isallobar

isagogic, isagogics, isai, isaiah, isaian, isallobar, isallotherm, isandrous, isanomal, isanthous, isar

British Dictionary definitions for isallobar

isallobar
/ (aɪˈsæləˌbɑː) /

noun

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

Scientific definitions for isallobar

isallobar
[ ī-săl′ə-bär′ ]

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.