foldingdoor
nounUK /ˈfəʊldɪŋ dɔː/
US /ˈfoʊldɪŋ dɔːr/
A door that folds up like a fan when you open it.
She slid the folding door open to let the sunshine into the room.
OTHER MEANINGS
2. A door made of panels joined so it can fold back against itself to save space.
The closet has a folding door that tucks neatly to one side.
3. A flexible door used to divide a large room into smaller sections.
They closed the folding door to make the hall feel cozier.
4. A door that opens by folding rather than swinging on a single hinge.
Unlike a normal door, the folding door does not need much room to open.