Isabnormal definitions

Isabnormal

1) Isoabnormal
Found on https://www.crosswordclues.com/clue/isabnormal

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isabnormal

line connecting points of equal deviation from mean temperature
Found on http://phrontistery.info/i.html

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isabnormal

a line on a map or chart connecting points having an equal deviation from the normal value of some meteorological quantity, as temperature.
Found on https://www.infoplease.com/dictionary/isabnormal

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