French doors are doors that has multiple windows. A French door fridges are refrigerators which have multiple doors like the one in the photo above. In the case of fridges, it is specifically fridges that have twin doors.
Advantages and Disadvantages of French door fridges
If you plan to locate a fridge in a narrow corridor, you will love the French door fridge and when the doors swing open, only a little space is required. However, if you have items which are very wide and need to be placed horizontally, you will find the narrower spaces in the twin compartments an impediment.