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giardia

American

[jee-ahr-dee-uh, jahr-] / dʒiˈɑr di ə, ˈdʒɑr- /

noun

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

Etymology

Origin of giardia

< New Latin, named after Alfred M. Giard (died 1908), French biologist; see -ia

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

And there’s no need for me to ruin anybody’s lunch by outlining the precise shape of how unpleasant it is, but believe me, you do not want to have giardia.

From Slate • Jul. 26, 2025

Funston, she cautions, has horse manure that can contain giardia.

From Los Angeles Times • Aug. 21, 2022

Giardiasis is an illness caused by the giardia parasite, and can be caused by drinking water that's not been treated to kill germs, according to the NHS.

From BBC • Apr. 15, 2022

Swine can harbor dozens of diseases including E. coli, leptospirosis, giardia, toxoplasmosis, and salmonella.

From Seattle Times • Feb. 1, 2022

Production on the Simi Valley, California, set was halted in June after a crew member tested positive for giardia, a parasite that causes diarrheal disease if swallowed.

From Fox News • Jul. 3, 2021

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023