It hardly even seems worth making a topic for, but it seems a bit misleading and I feel it is relevant on an anime forum. A visual novel is a very specific kind of (usually Japanese) adventure game, many of which are adapted into anime series, e.g. Steins;Gate, Fate/Stay Night, Clannad, etc. Western ones do exist, but they're typically less well known and would probably be better served in the gaming section. Maybe 'visual novel' is a term used for a graphic novel in some circles, but I've never heard it used in that sense.