Ba·be·si·i·dae noun pl \ˌbab-ə-ˈzī-ə-ˌdē, -ˈzē-\
: a family of the order Haemosporidia comprising minute protozoan parasites of mammalian red blood cells that are transmitted from host to host by the bite of a tick intermediate host and cause some destructive diseases of domestic animals—see babesia
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