1) Infestation 2) Infestation by a roundworm 3) Tropical disease 
<microbiology> An infection of the large intestine by Trichuris trichiura. It may be the most common helminthic infection found in Americans returning from subtropical and tropical areas. ... Children and the mentally retarded have the highest rate of infection due to a general lack of sanitary habits. The worms are 30-50 mm in length and att...
(trik″u-ri´ә-sis) infection with species of Trichuris; in adults it may be asymptomatic, but in children it may cause vomiting, diarrhea, and rectal prolapse.
Type: Term Pronunciation: trik′yū-rī′ă-sis Definitions: 1. Infection with nematodes of the genus Trichuris. In humans, intestinal parasitization by T. trichiura is usually asymptomatic and not associated with peripheral eosinophilia; in massive infections it frequently induces diarrhea or rectal prolapse.
Trichuriasis: Infection with the human whipworm, a nematode (roundworm) formally known as Trichuris trichiura. The third most common round worm of humans. Occurs worldwide, with infections more frequent in areas with tropical weather and poor sanitation practices, and among children. It is estimated that 800 million people are infected worldwide. T...
[n] - infestation by a roundworm
intestinal infection caused by the whipworm Trichuris trichiura
noun infestation by a roundworm; common in tropical areas with poor sanitation