an·a·plas·mo·sis -.plaz-'mō-səs n, pl -mo·ses -.sēz a tick-borne disease of cattle, sheep, and deer caused by a bacterium of the genus Anaplasma (A. marginale) and characterized esp. by anemia and by jaundice called also gall sickness, galziekte
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ana·plas·mo·sis (an″ə-plaz-moґsis) 1. infection with organisms of the genus Anaplasma. 2. a disease of cattle and related ruminants marked by fever, anemia, and icterus; caused by Anaplasma marginale or A. ovis, which is transmitted by ticks and other blood-sucking arthropods. Called also gallsickness or gall sickness.Medical dictionary. 2011.