plural noun

: a family of marine bivalve mollusks (order Eulamellibranchia) that live in burrows (as in wood or clay) which they rasp out with their small trilobed shells and line with a calcareous secretion, are very destructive to marine wooden constructions (as ships and wharves), and are vermiform with very long siphons united through most of their length see bankia , shipworm, teredo compare pholas

Word History


New Latin, from Teredin-, Teredo, type genus + -idae

Love words?

You must — there are over 200,000 words in our free online dictionary, but you are looking for one that’s only in the Merriam-Webster Unabridged Dictionary.

Start your free trial today and get unlimited access to America's largest dictionary, with:

  • More than 250,000 words that aren't in our free dictionary
  • Expanded definitions, etymologies, and usage notes
  • Advanced search features
  • Ad free!

Dictionary Entries Near Teredinidae

Cite this Entry

“Teredinidae.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/Teredinidae. Accessed 3 Jun. 2023.

Love words? Need even more definitions?

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