Definition of lone star tick
: an ixodid tick (Amblyomma americanum) of the southern, central, and eastern U.S. that attacks mammals and birds, is a vector of several diseases (such as Rocky Mountain spotted fever and ehrlichiosis), and in which the adult female has a single white spot on the back
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Merriam-Webster unabridged
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The first known use of lone star tick was in 1896
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