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isanomal

[ahy-suh-nom-uh l]

noun Meteorology.

a line on a map or chart connecting points having an equal anomaly of a meteorological quantity.

Compare isabnormal.

Origin of isanomal

1880–85; is- + -anomal, back formation from anomalous

Related formsis·a·nom·a·lous, adjective

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019