Definition of Holectypina
: a suborder of extinct sea urchins (order Exocycloida) having a central peristome, an excentric periproct, an Aristotle's lantern, and nonpetaloid ambulacra and found in Jurassic, Cretaceous, and Eocene strata
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.
Join MWU now and get access to America’s largest dictionary, with:
- 300,000 words that aren't in our free dictionary
- Expanded definitions, etymologies, and usage notes
- Advanced search features
- Ad free!
Origin and Etymology of holectypina
New Latin, from Holectypus, genus of sea urchins (from hol- + Greek ektypos worked in relief) + -ina
Seen and Heard
What made you want to look up Holectypina? Please tell us where you read or heard it (including the quote, if possible).