parasiticidal

adjective

par·​a·​sit·​i·​cid·​al ˌper-ə-ˌsi-tə-ˈsī-dᵊl How to pronounce parasiticidal (audio)
ˌpa-rə-
: destructive to parasites
parasiticide
ˌper-ə-ˈsi-tə-ˌsīd How to pronounce parasiticidal (audio)
ˌpa-rə-
noun

Word History

First Known Use

1892, in the meaning defined above

Time Traveler
The first known use of parasiticidal was in 1892

Rhymes for parasiticidal

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Browse Nearby Words

parasitic castration
parasiticidal
parasitic jaeger
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Cite this Entry

“Parasiticidal.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/parasiticidal. Accessed 7 Jul. 2026.

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Medical Definition

parasiticidal

adjective
par·​a·​sit·​i·​ci·​dal -ˌsit-ə-ˈsīd-ᵊl How to pronounce parasiticidal (audio)
: destructive to parasites
the parasiticidal action of a substance
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