swine-flu

swine flu

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

Origin:
1920–25

Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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American Heritage
Science Dictionary
swine flu   (swīn)  Pronunciation Key 
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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