Definition of isallobar in English:

isallobar

Pronunciation /īˈsaləˌbär/ /aɪˈsæləˌbɑr/

noun

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

    ‘Thus an isallobar would join all places in an area that show a change of +2 millibars, another -1 millibars, and so on.’

Origin

Early 20th century from iso-‘equal’ + allo-‘other’ + bar.

Pronunciation

isallobar

/īˈsaləˌbär/ /aɪˈsæləˌbɑr/