Definition of DISK

  1. (verb)draw a harrow over (land)
  2. (noun)something with a round shape resembling a flat circular plate
  3. (noun)a flat circular plate
  4. (noun)sound recording consisting of a disk with a continuous groove; used to reproduce music by rotating while a phonograph needle tracks in the groove
  5. (noun)(computer science) a memory device consisting of a flat disk covered with a magnetic coating on which information is stored