Seconded. I've only been doing it for about a year, but I really love fencing. It's the only sport I've done where I tend to laugh when the opponent scores a point because they out-clevered me.
It is a martial art; it's just not an Asian martial art.
Swordfighting is a [set of] martial art[s]. Fencing is a sport. Unless you find a teacher who's interested in things like targetting vulnerable spots, putting power behind a strike and maintaining defense after a point is scored.
I second that, having practiced fencing for a year. That's pretty much the wording we'd use to describe it.