[jee-ahr-dee-uh, jahr-]
any flagellate of the genus Giardia, parasitic in the intestines of vertebrates.

< Neo-Latin, named after Alfred M. Giard (died 1908), French biologist; see -ia Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Medical Dictionary

Giardia Gi·ar·di·a (jē-är'dē-ə)
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.
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Example sentences
Giardia trophozoites under scanning electron microscope.
Giardia can be found in two life cycle stages, a cyst and a trophozoite.
Education and information about giardia epidemiology and risk factors.
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