Alternative form of Secchi disk

Alternative spelling of flippy disk

Alternative form of Alderson disk

(UK) A circular piece of paper, designed to be fixed to the inside of a windscreen, that serves as a record that a vehicle has been properly taxed (no longer used)

A disk of fired clay from the Minoan palace of Phaistos on the island of Crete, possibly dating to the middle or late Minoan Bronze Age.

The process by which optical discs become unreadable due to physical or chemical deterioration.

(religion) A disc symbolizing the sun, especially as used as religious symbol in ancient Egypt.

Alternative form of floppy disk

plural of disc harrow

(agriculture) A harrow comprising a series of angled discs