Zool. [mod.L. f. Gr. τρύπανον borer + σῶμα body.] A genus of flagellate infusorial protozoa, species of which are parasitic in the blood of man and other animals, causing specific diseases, such as sleeping-sickness; an infusorian of this genus. Hence Trypanosomacide [L. -cīda, -CIDE 1], a substance having the property of destroying trypanosomes; Trypanosomai, -somatic, -somatous adjs., of, pertaining to, or caused by trypanosomes; ǁ Trypanosomatosis [mod.L.: see -OSIS] = trypanosomiasis; Trypanosome [a. F. trypanosome (Gruby, 1843)], an infusorian of the genus Trypanosoma; ǁ Trypanosomiasis, pl. -ases [mod.L., after elephantiasis, etc.], a disease produced by infection with trypanosomes; Trypanosomic a. = trypanosomal (in quot. 1906, infected with trypanosomes).

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[1843.  Gruby, in Comptes Rendus, XVII. 1134 (title), Recherches et observations sur une nouvelle espèce d’hématozoaire, *Trypanosoma sanguinis. Les travaux des physiologistes modernes ont fait connaître l’existence de parasites vivants dans le sang des animaux. Ibid., 1135. Je propose de nommer cet hématozoaire Trypanosome.]

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1880.  Kent, Infusoria, I. 218. Trypanosoma.… Occurring in the blood of Amphibia, and within the intestinal viscera of domestic poultry.

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1898.  P. Manson, Trop. Diseases, v. 102. [Sir David] Bruce’s notable work on the tsetse fly as a medium in diffusing the trypanosoma of ‘fly disease.’

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1903.  Daily Chron., 20 Nov., 5/2. A fly had been found to convey the newly-discovered blood-parasite of tropical countries, called the trypanosoma.

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1903.  Times, 7 Nov., 12/1. The search for what must, we suppose, be styled a *trypanosomacide.

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1904.  Brit. Med. Jrnl., 17 Sept., 644. Prowazek … finds similar *trypanosomal forms which also assume resting forms.

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1908.  Lancet, 2 May, 1285/2. Trypanosomal infection.

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1904.  Science, 22 July, 112/2. The cultivation of the organisms causing *trypanosomatic diseases.

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1903.  Lancet, 4 April, 945/2. [The chimpanzee] suffers from ankylostomiasis, filariasis, and *trypanosomatosis.

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1891.  Cent. Dict., *Trypanosomatous.

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1903.  Daily Record & Mail, 16 April, 5. Although we found the parasite in none of the natives … we did find a *trypanasome in each of two horses belonging to the commandant.

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1908.  Athenæum, 21 Nov., 651/3. Prof. E. A. Minchin exhibited a series of drawings of trypanosomes obtained from British freshwater fishes.

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1902.  Westm. Gaz., 21 Aug., 5/2. An … expedition to West Africa … left … to-day…. They go to French Senegal,… into the interior to investigate the tropical disease known as *trypanosomiasis.

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1912.  Nature, 21 Nov., 338/2. The progress … of our knowledge with regard to the trypanosomiases of animals and human beings in Africa.

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1905.  Brit. Med. Jrnl., 27 May, 1140. The heavy loss among horses and cattle … from various *trypanosomic diseases. Ibid. [see TRYPAN].

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1906.  E. N. Tobey, in Jrnl. Med. Research, XV. July, 125. This water is then inoculated with the otherwise sterile trypanosomic blood.

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