: a usually tadpole-shaped larval trematode worm that develops in a molluscan host from a redia

Word History

Etymology

New Latin, from Greek kerkos

First Known Use

circa 1871, in the meaning defined above

Time Traveler
The first known use of cercaria was circa 1871

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Cite this Entry

“Cercaria.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/cercaria. Accessed 24 Mar. 2025.

Medical Definition

: a usually tadpole-shaped larval trematode worm that develops in a molluscan host from a redia

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