plural noun

: a family of tapeworms that are parasites of fishes, have scolices resembling those of members of the Cyclophyllidae and reproductive organs like those of members of the Tetraphyllidea, and are sometimes placed in either of these orders but now more usually isolated in a separate order

Word History


New Latin, from Proteocephalus, type genus + -idae

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Dictionary Entries Near Proteocephalidae

Cite this Entry

“Proteocephalidae.” Dictionary, Merriam-Webster, Accessed 28 May. 2024.

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