✨📕 The NEWThe NEW Collegiate Dictionary, 12th Edition Over 5,000 words added — Buy Now! Collegiate DictionaryBuy Now!

lone star tick

noun

: 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

Examples of lone star tick in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
But scientists believe those bites were actually from larvae of lone star ticks, which can cause alpha-gal syndrome. NPR, 15 Nov. 2025 Deer are the main hosts of the lone star tick, and as deer populations have grown, tick populations have exploded. Brenda Goodman, CNN Money, 14 Nov. 2025 It is most often caused by a lone star tick bite, although bites from other ticks can cause the syndrome. Claire Cameron, Scientific American, 14 Nov. 2025 Most cases in the United States are linked to a particular tick species — the lone star tick — which is found in the Northeast, the South and the Midwest. Aria Bendix, NBC news, 13 Nov. 2025 See All Example Sentences for lone star tick

Word History

First Known Use

1896, in the meaning defined above

Time Traveler
The first known use of lone star tick was in 1896

Browse Nearby Words

Cite this Entry

“Lone star tick.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/lone%20star%20tick. Accessed 29 Nov. 2025.

Medical Definition

lone star tick

noun
: an ixodid tick of the genus Amblyomma (A. americanum) of the southern, central, and eastern United States that attacks mammals and birds, is a vector of several diseases (as Rocky Mountain spotted fever, ehrlichiosis, and anaplasmosis), and in which the adult female has a single white spot on the back

More from Merriam-Webster on lone star tick

Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!