French doors

For an American, the term "French doors" has a very specific meaning. They are a pair of windowed doors that open onto a patio or terrace. I suppose the reason they're called "French" is that it's a fairly common door configuration here in France. Our house has two pair, an exterior pair that open onto our deck and an interior pair that separate our stairs from the dining room.

A house's front door in Le Grand Pressigny.

In France those kinds of doors are called portes-fenêtres (window doors). They typically have glass from top to bottom. Sometimes the bottom panels are solid with no glass, but at least three quarters of the height of the the door is glass. And there are always two swinging panels.

So, the door I've pictured here is not une porte-fenêtre. There's only one moving door; the windows on either side may or may not open, but they're not doors. Of course, since it's in France, it's still a French door, non?