Definition of Giardia
Giardia: A genus of protozoa that infect the gastrointestinal tract of some animals, including humans. Giardia have a large sucking disk which permits them to adhere to the intestinal lining. The species that infects humans (and causes diarrhea) is Giardia lamblia.
Named after the French biologist Alfred Mathieu Giard (1846-1908). See also: Giardia lamblia.Source: MedTerms™ Medical Dictionary
Last Editorial Review: 10/9/2012
Medical Dictionary Definitions A - Z
Search Medical Dictionary
Digestive Disorders Resources
- How to Deal With Side Effects of Medication
- Is It Okay to Take a Stool Softener Every Day?
- The Truth About Food Allergies