Real Dictionary

elephantiasis in American English
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 fil
noun: a chronic filarial disease resulting in lymphatic obstruction, characterized by marked enlargement of the parts affected, esp. of the legs and scrotum, transmitted by mosquitoes

elephantiasis in British English
noun: a complication of chronic filariasis, in which nematode worms block the lymphatic vessels, usually in the legs or scrotum, causing extreme enlargement of the affected area