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.
Both women reported being bitten by ticks, which suggests that other species — including Ixodes scapularis, also called black-legged or deer ticks — may also be associated with alpha-gal syndrome, though much more rarely. Kaitlin Sullivan, NBC News, 21 Mar. 2025 Warmer weather give nasty little vectors like the deer ticks that carry the disease a longer time period to spread it. Paul Smaglik, Discover Magazine, 20 Mar. 2025 While ticks are active, Wisconsinites can contract Lyme disease, a bacterial infection spread by deer ticks. Alex Groth, Journal Sentinel, 24 May 2024 The most common way to get Lyme disease is through the bite of the black-legged tick (also called the deer tick) or the western black-legged tick.1 These ticks carry and spread the bacterial strains that cause Lyme disease, specifically Borrelia burgdorferi and, rarely, Borrelia mayonii. Jennifer Welsh Published, Verywell Health, 3 Feb. 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 14 Apr. 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
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