A recent post brought up a regional difference in definitions.  What do you call a "chisel plow"?  In the post below this was referred to as a chisel plow, but to many guys east of the Mississippi it looks like a field cultivator

To me a chisel plow looks like this:

The kind of ground I work one as big as the first would be unusable.  It would take 500+ hp to pull it ... and in places that wouldn't be nearly enough.

So, when the term chisesl plow is used, what do you expect to see and how is it different from what we would call a field cultivator?

Is the diffference in design, use, expectations, or just different words for the same thing?