| a screen or mat covered with a dark material for shielding a camera lens from excess light or glare. |
| a scrap or morsel of food left at a meal. |
| magnetic tape | |
| —n | |
| Sometimes (informal) shortened to: mag tape a long narrow plastic or metal strip coated or impregnated with a ferromagnetic material such as iron oxide, used to record sound or video signals or to store information in computers | |
| magnetic tape
A plastic tape coated with iron oxide for use in magnetic recording. |
A device for storing information, in which signals are recorded by lining up small bits of magnetic materials in the coating on the tape. Ordinary tape recorders use magnetic tape.