The real definition should be that a loaded firearm means any firearm that contains not only live ammunition in the attached magazine or cylinder but with a round in battery and ready for immediate firing.
I disagree.
Certainly the term "loaded" should
include having a round in battery and ready for immediate firing, but it should not be limited to just that.
In basic English, putting something in or on something else "loads" it. It can be responsibility on your shoulders, cartridges in a gun, boxes in the trunk of your car, or a host of other things. You may add descriptors, "partially loaded, half loaded, loaded to capacity, fully loaded", etc., but they are ALL LOADED.
A gun is either loaded, or it unloaded. Placing a single round in the gun loads it. There is no other condition possible. Owners manual instructions (for all action types where ammo is not directly placed in the chamber) tell you to load the ammunition, then chamber a round in order to fire. NOTE THE ORDER. Load, then chamber. So in both standard English and the makers instructions a gun is loaded before it can be fired.
THEREFORE, choosing a definition that requires a round in position to fire immediately in order to be "loaded" is incorrect.
Round(s) in the gun, chamber empty, the gun is loaded.
Round(s) in the gun, chamber loaded, the gun is loaded.
No round in the gun, unloaded / empty / not loaded.
These are the only physical conditions possible.
Some have gone so far as to say "the gun is always loaded". (even when it's not). I think this is a poor idea. TREAT the gun as if it were loaded, sure, absolutely. EXPLAIN (over and over) WHY WE treat the gun as loaded, even when it is not.
But don't say its loaded when it is not. That just makes you look rather ..stupid.
(this does not apply to legal definitions, other than the stupid part...
)