Pleurotomaria

noun

Pleu·​ro·​to·​mar·​ia

ˌplu̇rətəˈma(a)rēə

: a large genus of nearly extinct two-gilled gastropods (suborder Rhipidoglossa) usually having a trochiform nacreous shell with a broad sinus in the outer margin of the last whorl that extends back around the whorls as a raised band

pleurotomariid

¦⸗⸗⸗¦ma(a)rēə̇d

adjective or noun

pleurotomarioid

-ēˌȯid

adjective or noun

Word History

Etymology

New Latin, from pleur- + -toma + -aria

The Ultimate Dictionary Awaits

Expand your vocabulary and dive deeper into language with Merriam-Webster Unabridged.

1. Expanded definitions
2. Detailed etymologies
3. Advanced search tools
4. All ad-free

Discover what makes Merriam-Webster Unabridged the essential choice for true word lovers.

Start Your Free Trial Now