Definitionen
1.NounA plate protecting a fighting person's back.
2.NounA plate harnessed to a diver's back, to which the gas cylinders are attached.
3.NounThe metal plate on the rear of a computer's casing, where the ports are found.
4.NounA wood or metal (or glass, etc) plate that serves as a backing for an object.
5.NounA rigid metal plate inside the brake drum, which supports the wheel cylinder, brake shoes, and other parts of a drum brake.
6.NounPart of a condenser microphone that sits behind the diaphragm and which acts, in conjunction with the diaphragm, as a sort of variable capacitor.