A chronic disease characterized by the enlargement of certain parts of the body, esp. the legs and genitals, and by the hardening and ulceration of the surrounding skin: it is caused by obstruction of the lymphatic vessels, often due to infestation by filarial worms.
Webster's New World
A tropical filarial disease that often leads to this condition as a result of infestation of the lymph glands and vessels with filarial worms; lymphatic filariasis.
American Heritage Medicine
Origin of Elephantiasis
Latin elephantiāsisfrom Greek elephāselephant-elephant-iāsis-iasis
American Heritage Dictionary of the English Language, 5th Edition