Computers. a thin, flexible plastic disk coated with magnetic material, on which data and programs can be stored for later retrieval: used mainly with microcomputers.
floppy disk (flŏp'pē) Pronunciation Key
A flexible plastic disk coated with magnetic material and covered by a protective jacket, used for storing data. Floppy disks were once the principal storage medium for personal computers, but inexpensive hard disks and writable compact disks have greatly diminished their role.