The human intestinal parasite Giardia lamblia. / (pathology) Giardiasis, the disease caused by the parasite.

Alternative letter-case form of giardia

(medicine) An infectious diarrheal disease in humans and mammals caused by the Giardia duodenalis parasite. / (medicine) Any disease in animals caused by parasites of the genus Giardia.

plural of giardiasis

(medicine) Relating to the Giardia parasite