i often see this used (for example, #6 vertical dowel with standard hook).
does dowel mean smooth bar?
if yes, should pier/pedestal of footing be called #6 vertical rebar instead?
Terminology varies with location. In Australia, those bars are called "starter bars", and "dowel" normally means a bar, deformed or smooth, meant for resisting out of plane shear. English is a difficult language...one word can have many meanings.
In my neck of the woods, a dowel can be smooth or deformed. (They are usually smooth in an expansion joint or in a wall or slab joint).
In a pier or pedestal, the dowel is the shorter bar that crosses the plane of the footing and pier and is lapped with the vertical reinforcing in the pier or pedestal.
As far as I've been able to tell, a north american dowel meets these criterion:
1) Cylindrical in shape with a length well in excess of its diameter.
2) Crosses some kind of boundary like a cold joint.
This is why we communicate with little pictures. Even #1 is negotiable per the dowels shown below.
I like to debate structural engineering theory -- a lot. If I challenge you on something, know that I'm doing so because I respect your opinion enough to either change it or adopt it.
Yes, I think #1 is clearly not inclusive. Not only the plate dowels shown in the pictures, but relatively common square dowels violate that definition.