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symbiosis

(Encyclopedia)symbiosis sĭmbēōˈsĭs [key], the habitual living together of organisms of different species. The term is usually restricted to a dependent relationship that is beneficial to both participants (als...

Ross, Sir Ronald

(Encyclopedia)Ross, Sir Ronald, 1857–1932, English physician, b. Almora, India. He studied malaria in India as a member (1881–99) of the Indian Medical Service, was professor of tropical medicine at University ...

Tristan L'Hermite, François

(Encyclopedia)Tristan L'Hermite, François fräNswäˈ trēstäNˈ lĕrmētˈ [key], pseud. of François L'Hermite, 1601–55, French playwright and poet. Poor and plagued by ill health, he was a page in the court ...

trypanosomiasis

(Encyclopedia)trypanosomiasis trəpănˌəsōmīˈəsis [key], infectious disease caused by a protozoan organism, the trypanosome, which exists as a parasite in the blood of a number of vertebrate hosts. The three ...

dermatitis

(Encyclopedia)dermatitis dûrˌmətīˈtĭs [key], nonspecific irritation of the skin. The causative agent may be a bacterium, fungus, or parasite; it can also be a foreign substance, known as an allergen. Contact ...

hermaphrodite

(Encyclopedia)hermaphrodite hərmăfˈrədītˌ [key], animal or plant that normally possesses both male and female reproductive systems, producing both eggs and sperm. Many plants, including most flowering plants ...

Manson, Patrick

(Encyclopedia)Manson, Patrick, 1844–1922, English parasitologist. After receiving his medical degree (1866) from the university at Aberdeen, Scotland, Manson left for China where he was to spend 24 years, studyin...

malaria

(Encyclopedia)malaria, infectious parasitic disease that can be either acute or chronic and is frequently recurrent. Malaria is common in Africa, Central and South America, the Mediterranean countries, Asia, and ma...

giardiasis

(Encyclopedia)giardiasis jēärdīˈəsĭs, järdīˈəsĭs [key], infection of the small intestine by a protozoan, Giardia lamblia. Giardia, which was named after Alfred M. Giard, a French biologist, is spread via...

Plautus

(Encyclopedia)Plautus (Titus Maccius Plautus) plôˈtəs [key], c.254–184 b.c., Roman writer of comedies, b. Umbria. His plays, adapted from those of Greek New Comedy, are popular and vigorous representations of ...

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