What's really fun, and probably even more confusing to the casual observer, is that most (all?) of the clip-fed firearms you'd remove the clip from after loading also had an internal magazine. So you're absolutely right! Especially when the terms refer to two completely different parts.

Some samples that come to mind:

http://en.wikipedia.org/wiki/Mannlicher_M1895

http://en.wikipedia.org/wiki/Mauser_C96 (the old "broom-handle" mauser)

I'm sure there's a few others. I saw a couple on Forgotten Weapons (they have a really great Youtube channel--check it out sometime) besides these two, but their names escape me.