DISKETTE
diskette, floppy, floppy disk
(noun) a small plastic magnetic disk enclosed in a stiff envelope with a radial slit; used to store data or programs for a microcomputer; “floppy disks are noted for their relatively slow speed and small capacity and low price”
Source: WordNet® 3.1
Etymology
Noun
diskette (plural diskettes)
(computing) A small, flexible, magnetic disk for storage and retrieval of data.
(computer hardware, dated) An 8-inch floppy disk.
Synonyms
• floppy
• floppy disk
• floppy diskette
• disk (Considered as a contraction in the UK)
Source: Wiktionary