[ jee-ahr-dahy-uh-sis, jahr- ]
/ ˌdʒi ɑrˈdaɪ ə sɪs, dʒɑr- /

noun Pathology.

an intestinal disorder characterized by abdominal discomfort and prolonged, intermittent diarrhea, caused by the protozoan Giardia lamblia and contracted by drinking untreated water, as of streams or ponds, contaminated with the feces of infected animals.

Origin of giardiasis

First recorded in 1915–20; see origin at giardia, -asis
Also called beaver fever. Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for giardiasis


/ (ˌdʒaɪɑːˈdaɪəsɪs) /


infection with the parasitic protozoan Giardia lamblia, which can cause severe diarrhoea
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Medicine definitions for giardiasis


[ jē′är-dīə-sĭs ]


A condition in which the intestines are infected with the protozoan Giardia lamblia.lambliasis
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

Science definitions for giardiasis


[ jē′är-dīə-sĭs ]

An intestinal infection caused by the protozoan Giardia lamblia. It is usually asymptomatic in humans but can cause diarrhea, nausea, and abdominal cramping. Giardiasis is most commonly transmitted by contaminated water and by direct contact among individuals in group settings.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.