Definition of isallobar
: an imaginary line or a line on a chart connecting the places of equal change of atmospheric pressure within a specified time
isallobaricplay \ˌī-ˌsa-lə-ˈbär-ik, -ˈber-, -ˈba-rik\ adjective
Origin and Etymology of isallobar
International Scientific Vocabulary is- + all- + -bar (as in isobar)
First Known Use: 1910
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