disk

Multiple Entries:
  disk    disc  

Concise Oxford English Dictionary © 2008 Oxford University Press:
disk/dɪsk/

▶noun variant spelling in the US and in computing contexts of disc.

Concise Oxford English Dictionary © 2008 Oxford University Press:
disc /dɪsk/ (US also disk)

▶noun

• 1 a flat, thin circular object.

  ■ dated a gramophone record.

  ■ (discs) one of the suits in some tarot packs, corresponding to coins in others.

• 2 (disk) an information storage device for a computer comprising a rotatable disc on which data is stored either magnetically or optically (as on a CD-ROM).

• 3 (also intervertebral disc) a layer of cartilage separating adjacent vertebrae in the spine.

• 4 Botany the central part of the flower of a daisy or other composite plant, consisting of a close-packed cluster of tubular florets.

– derivatives
discless adjective.

– origin C17: from Fr. disque or L. discus (see discus).