backplate

About 0.04 uses per million words.

Meaning

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

Similar words

backpiece bodyplate chestplate plate breastplate placard buttplate armplate palette placket

Often followed by

and of is to with or as in at