pelecypod

noun

pe·​lec·​y·​pod pə-ˈle-sə-ˌpäd 

: lamellibranch

Word History

Etymology

New Latin Pelecypoda, group name, from Greek pelekys ax (akin to Sanskrit paraśu ax) + pod-, pous foot — more at foot

First Known Use

1875, in the meaning defined above