Fun5acres-
The revelant part of the definition is: "uses scent and/or flavoring to attract fish".

Clearly plastics with anise, salt or other enhancements would be considered a bait and would not be legal on selective fishing waters.

One needs to apply your own common senses on what is a scented lure. Suggest you ask the question "Does it smell good to the fish?" or "Does it increase the likelyhood that the fish will bite the rig or to hold it longer?" "Do you do feel that you are more succesful with or than without the scent?"

Tight lines
Smalma