Pentremites

noun

Pen·​tre·​mi·​tes

ˌpen‧trəˈmīˌtēz

: a genus (the type of the family Pentremitidae) comprising Mississippian blastoid echinoderms having an ovate or pyriform calyx with five ambulacral areas suggestive of petals

Word History

Etymology

New Latin, from penta- (from Greek) + Greek trēma hole + New Latin -ites

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