: a widely distributed genus (the type of the family Spionidae) of small burrowing marine polychaete worms without tentacles or palps but with enlarged dorsal cirri acting as gills

Word History


New Latin Spion-, Spio, perhaps from Latin Spio, one of the Nereids, from Greek Speiō

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Dictionary Entries Near Spio

Cite this Entry

“Spio.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/Spio. Accessed 19 Apr. 2024.

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