buffer

1. A solution used to stabilize the pH (acidity) of a liquid, such as by resisting a change in pH when an acid or alkali is added.
2. Anything used to maintain slack or isolate different objects.
3. A device on trains and carriages designed to cushion the impact between them.
4. The barrier placed at the end of the track to absorb the impact of a train that fails to stop.
5. An isolating circuit, often an amplifier, used to minimize the influence of a driven circuit on the driving circuit.
6. A routine or storage medium used to compensate for a difference in rate of flow of data, or time of occurrence of events, when transferring data from one device to another.
7. A portion of memory set aside to temporarily store data, often before it is sent to an external device or as it is received from an external device.
8. A buffer zone (such as a demilitarized zone) or a buffer state.

الجمع buffers