"To Determine if a Coordinate System is Geodetic"

[Pointdump]

From >>>This AKN<<<:
"The Definition Type column indicates whether a coordinate system is geodetic (G) or projected (P)."
Wrong. (G) indicates a Geographic Coordinate System and uses Degree Units instead of Feet or Meter Units. Geodetic means that the Latitudes are defined perpendicular to the Ellipsoid. The term Geodetic only applies to how a Datum references an Ellipsoid.

"Coordinate systems that are referenced to ellipsoids are non-geodetic."
What does this even mean? Definition of terms, people!

Dave