1. a tick that feeds on dusky-footed wood rat and bites humans; principal vector for Lyme disease in western United States especially northern California; [syn: Ixodes pacificus, western black-legged tick]
WordNet (r) 3.0 (2006):
Ixodes pacificus
n 1: a tick that feeds on dusky-footed wood rat and bites
humans; principal vector for Lyme disease in western United
States especially northern California [syn: Ixodes
pacificus, western black-legged tick]