ETYM Prop a striker. Related to Buffet a blow.
1. A cushion-like device that reduces shock due to contact; SYN. fender.
2. Metaphorically, any protective mechanism.
3. A power tool used to buff surfaces; SYN. polisher.

A region of memory reserved for use as an intermediate repository in which data is temporarily held while waiting to be transferred between two locations or devices. For instance, a buffer is used while transferring data from an application, such as a word processor, to an input/output device, such as a printer.
In computing, a part of the memory used to store data temporarily while it is waiting to be used. For example, a program might store data in a printer buffer until the printer is ready to print it.(Computer science) A part of RAM used for temporary storage of data that is waiting to be sent to a device; used to compensate for differences in the rate of flow of data between components of a computer system; SYN. buffer storage.
A storage area for data that is used to compensate for a speed difference, when transferring data from one device to another. Usually refers to an area reserved for I/O operations, into which data is read, or from which data is written.

Mixture of chemical compounds chosen to maintain a steady pH. The commonest buffers consist of a mixture of a weak organic acid and one of its salts or a mixture of acid salts of phosphoric acid. The addition of either an acid or a base causes a shift in the chemical equilibrium, thus keeping the pH constant.
An ionic compound that resists changes in its pH.
Any substance or combination of substances which, when dissolved in water, produces a solution which resists a change in its hydrogen ion concentration on the addition of an acid or alkali.

To add a buffer to; of solutions.

To use a region of memory to hold data that is waiting to be transferred, especially to or from input/output (I/O) devices such as disk drives and serial ports.