Folding

Fold or folding may refer to:

Paper folding, the art of folding paper
Book folding, in book production
Skin fold, an area of skin that folds
Fold (poker), in the game of poker, to discard one's hand and forfeit interest in the current pot
Fold (album), the debut release by Australian rock band Epicure
FOLD, the NASDAQ stock trading symbol for Amicus Therapeutics
The fold in newspapers, used to demarcate content above the fold
Sheep fold, a sheep pen in British English
Folding bicycle, bicycle designed to fold into a compact form

Science

Fold (geology), one or a stack of originally flat and planar surfaces that are bent or curved as a result of plastic deformation
Folding (chemistry), the process by which a molecule assumes its shape or conformation
- Protein folding, the physical process by which a polypeptide folds into its characteristic and functional three-dimensional structure
- Folding@home, a powerful distributed-computing project for simulating protein folding
Folding (signal processing), an aspect of aliasing
Folding (Dynkin diagram), a way of obtaining one Dynkin diagram from another
Fold coverage, quality of a DNA sequence
Polygon folding, or polyhedron folding

Fold (higher-order function), a type of programming operation on data structures
fold (Unix), a computer program used to wrap lines to fit in a specified width
Folding editor, a text editor that supports text folding or code folding, allowing the user to hide and reveal blocks of text
case folding is the conversion of letter case in a string
Constant folding, a compiler optimization technique