A small flat case containing magnetic tape on two reels, used to record and play back audio and video material.
A saggar (ceramic container used in a kiln)
Any similar small cartridge, such as for a computer disk or cassette air conditioner
A modular DNA sequence encoding one or more genes for a single biochemical function.
A lightproof container for photographic film.
A set of sprockets mounted onto a splined shaft on the freehub.