Definitions

from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. Any of various parasitic flagellate protozoans of the genus Trypanosoma, transmitted to the vertebrate bloodstream, lymph, and spinal fluid by certain insects and often causing diseases such as sleeping sickness and nagana.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. Any of a group of protozoan parasites which are transmitted by biting insects and infect the blood of humans and other vertebrates.

from The Century Dictionary and Cyclopedia

  • n. An infusorian of the order Trypanosomata. See trypanosomiasis.

Etymologies

From New Latin Trȳpanosōma, genus name : Greek trūpanon, auger (from trūpān, to bore, from trūpē, hole) + Greek sōma, body.
(American Heritage® Dictionary of the English Language, Fourth Edition)
From trypano- + -some (Wiktionary)

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