Isallobar
noun
noun ·Rare ·Advanced level
Definitions
Noun
- 1 A line joining points of equal pressure change during a specific time interval, especially over three hours.
"Seasonal variations of atmospheric pressure are illustrated by the isallobaric chart […] which gives the differences between mean pressure in July–August, and in January–February. The position of the isallobars on this chart is largely indicative of the role of monsoonal factors […]"
Example
More examples"Seasonal variations of atmospheric pressure are illustrated by the isallobaric chart […] which gives the differences between mean pressure in July–August, and in January–February. The position of the isallobars on this chart is largely indicative of the role of monsoonal factors […]"
Etymology
From iso- + allo- + bar.
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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.