Medical Dictionary
western black–legged tick
noun wes·tern black–legged tick \ˈwes-tərn-ˈblak-ˌlegd-\
Medical Definition of WESTERN BLACK-LEGGED TICK
: a tick of the genus Ixodes (I. pacificus) that is a vector of Lyme disease and is found especially in some parts of the Pacific coastal states of the United States
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