Definition of American dog tick
: a common North American ixodid tick (Dermacentor variabilis) especially of dogs and humans that is an important vector of Rocky Mountain spotted fever and tularemia
— called also dog tick
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“American dog tick.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/American%20dog%20tick. Accessed 19 Oct. 2021.
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The first known use of American dog tick was in 1902
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