disc

1. Sound recording consisting of a disk with a continuous groove;
   Used to reproduce music by rotating while a phonograph needle tracks in the groove (synset 103930191)
   is a type of: audio, audio recording, sound recording - a recording of acoustic signals
   subtypes:

   • l-p, lp - a long-playing phonograph record; designed to be played at 33.3 rpm
   • 78, seventy-eight - a shellac based phonograph record that played at 78 revolutions per minute
   has: acetate disk, phonograph recording disk - a disk coated with cellulose acetate
   same as: disk, phonograph record, phonograph recording, platter, record
2. Something with a round shape resembling a flat circular plate (synset 113897824)
   "the moon's disk hung in a cloudless sky"
   is a type of: round shape - a shape that is curved and without sharp angles
   subtypes:

   • intervertebral disc, intervertebral disk - a fibrocartilaginous disc serving as a cushion between all of the vertebrae of the spinal column (except between the first two)
   • dot, point - a very small circular shape
   same as: disk, saucer
3. (computer science) a memory device consisting of a flat disk covered with a magnetic coating on which information is stored (synset 103712192)
   referred to in: computer science, computing - the branch of engineering science that studies (with the aid of computers) computable processes and structures
   is a type of: memory device, storage device - a device that preserves information for retrieval
   subtypes:

   • diskette, floppy, floppy disk - a small plastic magnetic disk enclosed in a stiff envelope with a radial slit; used to store data or programs for a microcomputer
   • fixed disk, hard disc, hard disk - a rigid magnetic disk mounted permanently in a drive unit
   same as: disk, magnetic disc, magnetic disk
4. A flat circular plate (synset 103213277)
   is a type of:

   • circle, round - any circular or rotating mechanism
   • plate - a sheet of metal or wood or glass or plastic
   subtypes:

   • acetate disk, phonograph recording disk - a disk coated with cellulose acetate
   • brake disk - a disk or plate that is fixed to the wheel; pressure is applied to it by the brake pads
   • deadeye - (nautical) a round hardwood disk with holes and a grooved perimeter used to tighten a shroud
   • diaphragm - electro-acoustic transducer that vibrates to receive or produce sound waves
   • discus, saucer - a disk used in throwing competitions
   • frisbee - a light, plastic disk about 10 inches in diameter; propelled with a flip of the wrist for recreation or competition
   • coin blank, planchet - a flat metal disk ready for stamping as a coin
   • hockey puck, puck - a vulcanized rubber disk 3 inches in diameter that is used instead of a ball in ice hockey
   • token - a metal or plastic disk that can be redeemed or used in designated slot machines
   same as: disk

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