plural noun

: a suborder of Opisthobranchia comprising gastropod mollusks (as bubble shells and sea hares) in which the gill is usually situated on one side of the back and protected by a fold of the mantle compare pteropoda
adjective or noun
adjective or noun

Word History


New Latin, from Latin tectus covered (from past participle of tegere to cover) + New Latin -i- + -branchia

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 Tectibranchia

Cite this Entry

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

Love words? Need even more definitions?

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