parallelopiped vs parallelepiped

parallelopiped and parallelepiped both are nouns.

Word	Noun	Adjective	Verb	Adverb
parallelopiped	Yes	No	No	No
parallelepiped	Yes	No	No	No

As nouns, parallelopiped and parallelepiped are synonyms defined as:

parallelopiped and parallelepiped: a prism whose bases are parallelograms

Other synonyms of parallelopiped include parallelepipedon, parallelopipedon.

parallelopiped (noun)	parallelepiped (noun)
a prism whose bases are parallelograms	a prism whose bases are parallelograms