Fewer guns mean fewer killings. We want a handgun ban.

[better]

36. First off, thanks for acknowledging the limitation of your knowledge of the terminology

And on that note, please allow me to explain the difference, so that you will be more adequately informed whenever measures come before us to decide whether or not to support.

(Fullly) Automatic means what we think of as a machine gun.
Once the first round has been manually chambered, bullets fire until you either release the trigger or run out of ammo.

Semi-Automatic means that one round is fired each time you pull the trigger, with the action of chambering the next round being performed using the energy expended by firing the last. In other words, no secondary action (cocking a lever/pump) is required between firing rounds.

To put that into sharper focus, consider also that but for the nuance of the round being chambered prior to it being fired and by the same mechanical action of pulling the trigger, rather than after the previous round is fired and by the energy of that round being released, a standard revolver is, in essence of operation, a semi-automatic.

It is this difference that accounts for gun enthusiasts (an not just gun nuts) being opposed to a ban on semi-autos.

It should also be noted that while gun enthusiasts oppose banning semi-automatics, they overwhelmingly support banning modifications like bump fire stocks that allow them to behave more like fully automatics.