parallelopipedon vs parallelepipedon

parallelopipedon and parallelepipedon both are nouns.

Word	Noun	Adjective	Verb	Adverb
parallelopipedon	Yes	No	No	No
parallelepipedon	Yes	No	No	No

As nouns, parallelopipedon and parallelepipedon are synonyms defined as:

parallelopipedon and parallelepipedon: a prism whose bases are parallelograms

Other synonyms of parallelopipedon include parallelepiped, parallelopiped.

parallelopipedon (noun)	parallelepipedon (noun)
a prism whose bases are parallelograms	a prism whose bases are parallelograms