isallobar

 
Pronunciation: /ʌɪˈsalə(ʊ)bɑː/

noun

Meteorology
  • a line on a map connecting points at which the barometric pressure has changed by an equal amount during a specified time.

Derivatives

isallobaric

adjective

Origin:

early 20th century: from iso- 'equal' + allo- 'other' + bar2