Minidisc (noun)

1. A small, portable digital audio disc that can be recorded and played back on a minidisc player.
2. A small, removable digital disc used for storing music, data, and other digital files.

Origin:

From the words "mini" meaning small and "disc" meaning a small, flat circular piece of plastic used for storing data or music.

Examples:

1. He recorded his album on a minidisc.
2. She used a minidisc to store her music collection.
3. The minidisc was a popular format for storing digital music in the late 90s and early 2000s.
4. The minidisc was small enough to fit in a pocket.
5. The minidisc was a popular alternative to cassette tapes.