I can still recall the arguments when the film Apollo XIII was nominated for a Hugo Award... I can also remember when "Glamour" and "Pin-Up" meant much the same, while a "Nude" was supposed to be less clothed and more "artistic". But it does sound as though somebody used a dictionary, rather than looking at photography magazines. That sounds like it comes from one of the older definitions of the word, and it's maybe a bit odd to medern ears,