[trih-pan-uh-sohm, trip-uh-nuh-]


any minute, flagellate protozoan of the genus Trypanosoma, parasitic in the blood or tissues of humans and other vertebrates, usually transmitted by insects, often causing serious diseases, as African sleeping sickness in humans, and many diseases in domestic animals.

Origin of trypanosome

1900–05; < Greek trȳpano- (combining form of trȳ́panon borer) + -some3
Related formstry·pan·o·so·mal, try·pan·o·som·ic [trih-pan-uh-som-ik, trip-uh-nuh-] /trɪˌpæn əˈsɒm ɪk, ˌtrɪp ə nə-/, adjective Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for trypanosome

Historical Examples of trypanosome

  • The trypanosome diseases form the best example of this mode of transmission.

    Disease and Its Causes

    William Thomas Councilman

  • Some weeks later they evolve into the trypanosome forms, pathogenic for man.

    Handbook of Medical Entomology

    William Albert Riley

  • The trypanosome lives in the blood of wild game and of rats without producing mischief.

  • This disease is caused by a Protozoan parasite, a trypanosome, which is transmitted from one host to another by the tsetse-fly.

    Insects and Diseases

    Rennie W. Doane

  • It is a matter of great interest that a trypanosome has been found in a death-stricken herd of European bison.

    More Science From an Easy Chair

    Sir E. Ray (Edwin Ray) Lankester

British Dictionary definitions for trypanosome



any parasitic flagellate protozoan of the genus Trypanosoma, which lives in the blood of vertebrates, is transmitted by certain insects, and causes sleeping sickness and certain other diseases
Derived Formstrypanosomal or trypanosomic (ˌtrɪpənəˈsɒmɪk), adjective

Word Origin for trypanosome

C19: from New Latin Trypanosoma, from Greek trupanon borer + sōma body
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

trypanosome in Medicine




A member of the genus Trypanosoma or of the family Trypanosomatidae.
Related formstry•pan′o•somal null adj.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

trypanosome in Science



Any of various parasitic flagellate protozoans of the genus Trypanosoma that can cause serious diseases, such as sleeping sickness. They are transmitted by the bite of certain insects, such as tsetse flies.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.