单词 | blue tick |
释义 | blue tick1/ˌbluː ˈtɪk/noun Any of several cattle ticks of the genus Rhipicephalus and subgenus Boophilus (family Ixodidae); specifically R. decoloratus, which is found mainly in sub-Saharan Africa and transmits babesiosis (redwater), anaplasmosis, and other parasitic diseases in wild and domesticated mammals. OriginMid 19th century; earliest use found in Journal Royal Asiatic Society. From blue + tick, so called because of the blue appearance of the body of the engorged female. blue-tick2/ˈbluːtɪk/noun = blue-tick coonhound. Origin1920s; earliest use found in Hunter–Trader–Trapper. From blue + tick. |
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