antiparasitic

adjective

an·​ti·​par·​a·​sit·​ic ˌan-tē-ˌper-ə-ˈsi-tik How to pronounce antiparasitic (audio)
-ˌpa-rə-
ˌan-tī-
variants or anti-parasitic
: acting against parasites : used or intended to kill, repel, or remove parasites
antiparasitic drugs/medicine
antiparasitic noun
or anti-parasitic
Most consumer spending is still on traditional pet medications like antiparasitics James Vlahos

Examples of antiparasitic 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.
Prescriptions for an antiparasitic drug spiked for cancer patients after a celebrity endorsed the medication during a recent episode of Joe Rogan’s podcast. Melissa Rudy, FOXNews.com, 13 May 2026 On a January 2025 episode of The Joe Rogan Experience, Gibson said that the antiparasitic drugs ivermectin and fenbendazole, which are both commonly used to treat worms in animals, had made his friends’ cancer disappear. Claire Cameron, Scientific American, 12 May 2026 Many others promoted ivermectin as a treatment, using the incident as a way to sell emergency medical kits featuring the antiparasitic drug typically used as a horse dewormer. David Gilbert, Wired News, 12 May 2026 Key Background Ivermectin is an antiparasitic drug that revolutionized the treatment of debilitating diseases, specifically those caused by roundworm parasites. Mary Whitfill Roeloffs, Forbes.com, 7 May 2026 See All Example Sentences for antiparasitic

Word History

First Known Use

1857, in the meaning defined above

Time Traveler
The first known use of antiparasitic was in 1857

Browse Nearby Words

Cite this Entry

“Antiparasitic.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/antiparasitic. Accessed 24 May. 2026.

Medical Definition

antiparasitic

adjective
an·​ti·​par·​a·​sit·​ic ˌant-i-ˌpar-ə-ˈsit-ik, ˌan-ˌtī- How to pronounce antiparasitic (audio)
: acting against parasites
antiparasitic drugs
Love words? Need even more definitions?

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

More from Merriam-Webster