ˌplu̇rəd.əˈma(a)rēə noun
Usage: capitalized
Etymology: New Latin, from pleur- + -toma + -aria
: 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
• pleu·ro·to·mar·i·id | ̷ ̷ ̷ ̷ ̷ ̷|ma(a)rēə̇d adjective or noun
• pleu·ro·to·mar·i·oid -ēˌȯid adjective or noun