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from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. A highly contagious form of human influenza caused by a filterable virus identical or related to a virus formerly isolated from infected swine.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. Influenza caused by orthomyxoviruses, which pass from pigs to humans.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. an acute and highly contagious respiratory disease of swine caused by the orthomyxovirus thought to be the same virus that caused the 1918 influenza pandemic


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