[soo
r-uh] 
| an often fatal infectious disease of horses, camels, elephants, and dogs caused by a blood-infecting protozoan parasite, Trypanosoma evansi, transmitted by the bite of horseflies, characterized by fever, anemia, and emaciation. |
| sur·ra (sŏŏr'ə) n. An often fatal infectious disease of domestic animals, especially horses, caused by the trypanosome (Trypanosoma evansi) and usually transmitted by biting insects. [Marathi sūra, sound of heavy breathing through nostrils, of imitative origin.] |