acar·​i·​cide ə-ˈker-ə-ˌsīd How to pronounce acaricide (audio)
: a pesticide that kills mites and ticks
acaricidal adjective

Examples of acaricide in a Sentence

Recent Examples on the Web Repellent can also help, as can treating your yard with acaricides — a type of pesticide focused on ticks and mites. Joshua Rapp Learn, Discover Magazine, 6 Oct. 2023 Large-scale habitat control or acaricide (tick-killing) treatment of wildlife, though possible, can be difficult or not cost-effective for homeowners. Joyce Sakamoto, Washington Post, 18 June 2018

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'acaricide.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History


acar(us) + -i- + -cide

First Known Use

1841, in the meaning defined above

Time Traveler
The first known use of acaricide was in 1841

Dictionary Entries Near acaricide

Cite this Entry

“Acaricide.” Dictionary, Merriam-Webster, Accessed 10 Dec. 2023.

Medical Definition


acar·​i·​cide ə-ˈkar-ə-ˌsīd How to pronounce acaricide (audio)
: a pesticide that kills mites and ticks

More from Merriam-Webster on acaricide

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