Gene Kearns:
If it
has a blower (supercharger) or turbocharger it is not naturally
aspirated.

Wayne.B:
but "naturally aspirated" 2 stroke
Detroit Diesels are commonly understood to be without a turbocharger
since all DDs have a blower just to move air into the cylinders.

Okay, I think I'm gettin' it now. I was thinking the DD "blower" was
just another term for "supercharger" but it's not.
The "blower" just provides the normal air pressure required to run the
engine (other 2 stroke designs do the same thing with crankcase
vacuum/pressure). But a "supercharger" would provide more than that.
An extra (super) boost so to speak. Thus the use of separate
terminology. Izat about right?

Rick