What is the difference between a stave and a compound segment?

Seems like a compound segment has both an angle and a bevel to each piece.

If a 6"x1" has a 22.5 degree bevel on each of the long edges, it's called a stave.

If the same piece of wood has a taper (1" on one end, 3/4" on the other), it's called a stave as well. It seems like this would be more of a compound segment/stave!

I'm asking because I'm thinking about turning a segmented vase, and the term "stave" is used...but the segment (stave) has both an angle and a bevel to each piece.

I'm thinking a compound tablesaw sled will meet my needs...but I would like to be sure!

Thanks for any explanation you may be able to provide...as I'm confused...