I What do you call a parallelepiped that isn't a cube?

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A parallelepiped that isn't a cube, rectangle, or rhombohedron may be best described as an "oblique parallelepiped" to clarify its tilted nature. Some suggest using adjectives like "non-rectangular parallelepiped" to exclude square and rectangular faces. The discussion highlights that parallelepipeds are a subset of prisms, but a specific term for non-standard forms may not exist due to limited practical need. Ultimately, using descriptive language is necessary to convey the intended shape accurately. Clear terminology is essential for effective communication in geometry.
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I was curious what you would call a parallelepiped that isn't a cube and isn't a rectangle and isn't just a rhombohedron? Here is my problem...I need to describe an oblique/tilted parallelepiped but if I just say 'parallelepiped' that would include a cube or rectangle (which I am not referring to). Should I just say oblique parallelepiped? Thank you!
 
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jedishrfu said:
I think parallelepipeds are a subset of Prisms. I need a subset of a parallelepiped. But thank you.
 
Here's some more definitions to consider:

https://en.wikipedia.org/wiki/Prismatoid

It looks like though you'll have to use some adjective in front of parallelepiped to describe what you mean like perhaps a non-rectangular parallelepiped which excludes square and rectangular faces.

You quest is similar to describing the set of real numbers without integers. There may be no proper term for it as there is no obvious need to define it.
 
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