isabnormal

[ ahy-sab-nawr-muhl ]

/ ˌaɪ sæbˈnɔr məl /

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noun Meteorology.

a line on a map or chart connecting points having an equal deviation from the normal value of some meteorological quantity, as temperature.

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navy

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azure

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Also isoabnormal.

Compare isanomal.

Origin of isabnormal

First recorded in 1850–55; is- + abnormal

Words nearby isabnormal

Isabela Island, Isabella, Isabella I, Isabella II, Isabella of France, isabnormal, isacoustic, Isadora, Isadore, isagoge, isagogic