swine flu

noun Pathology.

a highly contagious form of influenza caused by infection with a filterable virus first isolated from swine.

Origin of swine flu

First recorded in 1920–25
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

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Science definitions for swine flu

swine flu
[ swīn ]

A highly contagious form of influenza seen in swine, caused by a virus of the family Orthomyxoviridae. The infection is communicable to humans and caused a worldwide epidemic in 1918.
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