buffer

Noun

• an implement consisting of soft material mounted on a block; used for polishing (as in manicuring)

• a cushion-like device that reduces shock due to an impact

• a power tool used to buff surfaces

• (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

• an inclined metal frame at the front of a locomotive to clear the track

• a neutral zone between two rival powers that is created in order to diminish the danger of conflict

• (chemistry) an ionic compound that resists changes in its pH

Verb

• protect from impact
  • cushion the blow
    

• add a buffer (a solution)
  • buffered saline solution for the eyes
    

Related words

• Synonyms: 
  buff , fender , polisher , buffer storage , buffer store , cowcatcher , pilot , buffer zone , cushion , soften