deer tick

noun

: an ixodid tick (Ixodes scapularis synonym I. dammini) of the eastern U.S. and Canada that transmits the bacterium causing Lyme disease

called also black-legged tick

Illustration of deer tick

Illustration of deer tick

Examples of deer 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.
Just look at how the deer tick has been extending its habitat by more than 20 miles per year, an estimate that Catherine Bouchard, a research scientist at the Public Health Agency of Canada provided in article by Maggie Astor for The New York Times. Bruce Y. Lee, Forbes.com, 28 June 2025 According to one survey from 2020, of 722 deer ticks that were attached to people, most of them—about 16%—were found on the thigh, followed by around the waist, the stomach, and groin. Julia Ries, Health, 25 June 2025 With the deer came deer ticks (Ixodes scapularis) carrying borrelia burgdorferi, the bacterium that causes Lyme disease. Sean Lawrence, The Conversation, 18 June 2025 An unlucky encounter with a deer tick (Ixodes scapularis) could leave you with Lyme disease. Jack Knudson, Discover Magazine, 4 June 2025 See All Example Sentences for deer tick

Word History

First Known Use

1982, in the meaning defined above

Time Traveler
The first known use of deer tick was in 1982

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Cite this Entry

“Deer tick.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/deer%20tick. Accessed 8 Jul. 2025.

Kids Definition

deer tick

noun
: a tick that transmits the bacterium causing Lyme disease

Medical Definition

deer tick

noun
: a tick of the genus Ixodes (I. scapularis synonym I. dammini) that transmits the bacterium causing Lyme disease
Last Updated: - Updated example sentences
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