- A dictionary of medical eponyms


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A genus of usually nonpathogenic flagellated protozoa (suborder Diplomonadina, order Diplomonadida). It is tear-drop shaped, with two anterior nuclei and four pairs of flagella. They inhibit the small intestine of man and other animals. They attach themselves to the cells of the intestinal mucosa, from which they absorb nourishment. It replicates from being passed in the stools of an infected person in the form of a cyst and is transmitted primarily when the infective cysts are ingested in fecally contaminated water or food. The concentration of chloric routinely used in water supplies will not kill Giardia cysts.

What is an eponym?

An eponym is a word derived from the name of a person, whether real or fictional. A medical eponym is thus any word related to medicine, whose name is derived from a person.

What is Whonamedit?

Whonamedit.com is a biographical dictionary of medical eponyms. It is our ambition to present a complete survey of all medical phenomena named for a person, with a biography of that person.


Whonamedit? does not give medical advice.
This survey of medical eponyms and the persons behind them is meant as a general interest site only. No information found here must under any circumstances be used for medical purposes, diagnostically, therapeutically or otherwise. If you, or anybody close to you, is affected, or believe to be affected, by any condition mentioned here: see a doctor.