[jee-ahr-dee-uh, jahr-]


any flagellate of the genus Giardia, parasitic in the intestines of vertebrates.

Origin of giardia

< New Latin, named after Alfred M. Giard (died 1908), French biologist; see -ia Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for giardia

Contemporary Examples of giardia

Historical Examples of giardia

  • Various forms of dysentery or diarrhea have been attributed to infection with Giardia (Lamblia) intestinalis.

    Food Poisoning

    Edwin Oakes Jordan

giardia in Medicine




A genus of flagellated, usually nonpathogenic protozoa that are parasitic in the intestines of vertebrates including humans and most domestic animals.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.