pereon

noun
pe·re·on | \pə-ˈrē-ˌän \
variants: or pereion \pə-ˈrī-ˌän \

Definition of pereon 

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

First Known Use of pereon

1855, in the meaning defined above

History and Etymology for pereon

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

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The first known use of pereon was in 1855

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