buffer

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buff|er /b'ʌfər/ (buffers buffering buffered)
1 [N-COUNT] oft N against/between n, N n
A buffer is something that prevents something else from being harmed or that prevents two things from harming each other.
Keep savings as a buffer against unexpected cash needs...
The Prison Service acts as a buffer between the minister and his critics.
2 [VERB] be V-ed, also V n
If something is buffered, it is protected from harm.
The company is buffered by long-term contracts with growers.
3 [N-COUNT] usu pl
The buffers on a train or at the end of a railway line are two metal discs on springs that reduce the shock when a train hits them. (mainly BRIT)
4 [N-COUNT]
A buffer is an area in a computer's memory where information can be stored for a short time. (COMPUTING)buff|er state (buffer states)
[N-COUNT]
A buffer state is a peaceful country situated between two or more larger hostile countries.
Turkey and Greece were buffer states against the former Soviet Union.buff|er zone (buffer zones)
[N-COUNT]
A buffer zone is an area created to separate opposing forces or groups which belongs to neither of them.

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