Urechis

noun

Ure·​chis
ˈyu̇rəkə̇s,
yəˈrek-
: a genus (the type of the family Urechidae) of large echiuroid worms which are common in mud along the California seacoast and in which a circulatory system is completely lacking so that the blood corpuscles float free in the coelomic fluid

Word History

Etymology

New Latin, from ur- entry 2 + Greek echis viper

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 Urechis

Cite this Entry

“Urechis.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/Urechis. Accessed 22 Jul. 2024.

Love words? Need even more definitions?

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