I think this depends very much on the hotel but I assume the room pictured below could be described as featuring a “partially open bathroom”.
Next to the bed is a bathtub which separates the living area from the bathroom area and it can be curtained off. There also is a shower and toilet with a sliding door. The bathroom area is accessible from the corridor on the right without a door.
Partial Open Bathrooms, usually refers to ensuite facilities where the sink and mirror are out in the open, while the shower and toilet are inside closed rooms/stalls. A lot of the ones I have seen have a divider between the sleeping area and washing area, but usually just something minimal, like three quarter height screen or wooden slats. It seems to be trending in tropical hotels, but would work well in city hotels, as the design makes the bath area feel bigger while still maximizing the space for the living/sleeping portion
Credit:stackoverflow.com‘