pereon

noun

pe·​re·​on pə-ˈrē-ˌän 

variants or pereion

pə-ˈrī-ˌän 

: the thorax or the seven metameres comprising the thorax of some crustaceans (such as a decapod)

Word History

Etymology

New Latin, from Greek peraiōn, present participle of peraioun to transport, from peraios situated beyond, from pera beyond; akin to Greek poros passage — more at fare

First Known Use

1855, in the meaning defined above