The definition of a "diesel" is: direct injection, compression ignition. It doesn't matter if they call it a diesel or not. Sometimes they choose not to call them diesel not to imply that it will only operate on "diesel fuel". Direct injection compression ignition engines can be deisgned to burn anything from bunker oil to kerosene to waste vegetable oil. Many will burn a range of those fuels. There is no such thing as a manifold fuel injected or carburated diesel in the full size world. Those types of engine are called HCCI.

http://en.wikipedia.org/wiki/Diesel_engine
http://en.wikipedia.org/wiki/HCCI