Perisphinctes

noun

Peri·​sphinc·​tes
ˌperəˈsfiŋ(k)(ˌ)tēz
: a genus (the type of the family Perisphinctidae) comprising discoidal ammonites having bifurcating ribs not interrupted on the ventral side and being characteristic of the Upper Jurassic
perisphinctoid
¦⸗⸗¦sfiŋ(k)ˌtȯid
adjective

Word History

Etymology

New Latin, from peri- + -sphinctes (from Greek sphinktos tightly bound, from sphingein to bind fast)

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 Perisphinctes

Cite this Entry

“Perisphinctes.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/Perisphinctes. Accessed 13 Apr. 2024.

Love words? Need even more definitions?

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