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Disc or disk (computing and American English) may refer to:

Data storage[edit]



  • Accretion disc, diffuse material in orbital motion around a central body such as a star or black hole
  • Debris disk, a ring shaped circumstellar disk of dust and debris in orbit around a star
  • Disc (galaxy), a disc-shaped group of stars
  • Protoplanetary disk, a rotating disc of dense gas surrounding a newly formed star, a form of accretion disc
  • Scattered disc, a distant region of the Solar System thinly populated by icy minor planets


  • Death-inducing signaling complex, a multi-protein complex formed by members of the death receptor family of apoptosis-inducing cellular receptors
  • Disk, an enlargement or outgrowth from the receptacle of the flower
  • Intervertebral disc, in animal anatomy, part of the spine
  • Placenta or placental disc, in mammals, an organ that connects a developing fetus to its mother's uterus
  • Optic disc, in the retina



  • Disc brake, a device for slowing or stopping the rotation of a wheel
  • Disc parking, a parking regulation with free parking when using a parking disc (clock disc)
  • Vehicle licence, commonly known as a "tax disc" in the UK, is a vehicle licence receipt placed inside the windscreen


Other uses[edit]

See also[edit]