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Definition of "giardia" [giardia]

  • Any of various flagellated, usually nonpathogenic protozoa of the genus Giardia that may be parasitic in the intestines of vertebrates including humans and most domestic animals. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

Use "giardia" in a sentence
  • "A three-year survey of chronic-fatigue-syndrome patients in Ne - vada and California showed that the only thing one group had in common was a history of infection with the waterborne parasite giardia, which is suspected of causing tears in the intestinal wall."
  • "But her name scares me… a little too close to giardia, which is a water-borne intestinal parasite."
  • "(Giardia?) · This may be caused by microscopic parasites called giardia or perhaps by malnutrition."