Process of protein structure formation.

Portable chair that collapses flat.

Doors that fold when opened.

Manipulating paper into artistic designs.

Room divider with multiple panels.

Door that folds when opened.

Cash that can be folded.

A kind of knife whose blade or blades can be folded inside the handle, owing to a joint. Such a knife is usually a pocketknife; its action may be locking or nonlocking.

In paper testing, folding endurance is defined as the logarithm (to the base of ten) of the number of double folds that are required to make a test piece break under standardized conditions:ISO 5626:1993