Noun

1. A small flat case containing magnetic tape on two reels, used to record and play back audio and video material.
2. Any similar small cartridge, such as for a computer disk.
3. A lightproof container for photographic film.
4. A modular DNA sequence encoding one or more genes for a single biochemical function.
5. A set of sprockets mounted onto a splined shaft on the freehub.

See also

• cartridge
• eight track, 8 track
• reel-to-reel