isabnormal
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English
[edit]Alternative forms
[edit]Noun
[edit]isabnormal (plural isabnormals)
- (meteorology, obsolete) A line connecting places on a map with equal deviation from the average temperature at that latitude.
- In January, the coldest part of Siberia lies within a −20°C isabnormal; it is 20°C colder than the average temperature along its latitude.