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

In 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

In computing:

  • 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

Famous quotes containing the word folding:

    A little sleep, a little slumber, a little folding of the hands to rest, and poverty will come upon you like a robber, and want, like an armed warrior.
    Bible: Hebrew, Proverbs 6:10.

    I’m folding up my little dreams
    Within my heart tonight,
    And praying I may soon forget
    The torture of their sight.
    Georgia Douglas Johnson (1886–1966)

    There’s only one way for an individual to remain upright, not to fall to pieces, not to sink into the mire of self-oblivion ... or self-contempt. That’s calmly to turn away from everything, to say, “Enough!” and, folding one’s useless arms across one’s empty breast, to retain the ultimate, the sole attainable virtue, the virtue of recognizing one’s own insignificance.
    Ivan Sergeevich Turgenev (1818–1883)