Definition of dog tick in English:

dog tick

noun

  • Any of several ticks (family Ixodidae) which infest dogs; especially the Eurasian Ixodes canisuga, the American Dermacentor variabilis, and the cosmopolitan Rhipicephalus sanguineus.

Origin

Mid 16th century; earliest use found in Thomas Elyot (c1490–1546), humanist and diplomat.