cassette

Etymology

Borrowed from French cassette.

noun

1. A small flat case containing magnetic tape on two reels, used to record and play back audio and video material.
   If you need to reload film, the cassette can be rewound slightly by turning the hub located on one end of its spool. 2011, Rebekah Modrak, Bill Anthes, Reframing Photography: Theory and Practice
2. Any similar small cartridge, such as for a computer disk or cassette air conditioner
3. (photography) A lightproof container for photographic film.
4. (genetics) A modular DNA sequence encoding one or more genes for a single biochemical function.
5. (cycling) A set of sprockets mounted onto a splined shaft on the freehub.
6. A saggar (ceramic container used in a kiln)