noun
Usage: usually capitalized R&M
: a widely distributed wood tick ( Dermacentor andersoni ) of western No. America that is a vector of Rocky Mountain spotted fever and sometimes causes tick paralysis
noun
Usage: usually capitalized R&M
: a widely distributed wood tick ( Dermacentor andersoni ) of western No. America that is a vector of Rocky Mountain spotted fever and sometimes causes tick paralysis
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012