- any substance or mixture of compounds that, added to a solution, is capable of neutralizing both acids and bases without appreciably changing the original acidity or alkalinity of the solution.
- Also called buff·er so·lu·tion. a solution containing such a substance.
verb (used with object)
THINK YOU’VE GOT A HANDLE ON THIS US STATE NICKNAME QUIZ?
OTHER WORDS FROM bufferun·buff·ered, adjective
Definition for buffer (2 of 3)
Definition for buffer (3 of 3)
noun British Slang.
Origin of buffer3
Example sentences from the Web for buffer
The option to ignore it is vanishing, even for parents with “good” insurance that buffers from the up-front costs.Is the Doctor-Patient Relationship Turning Into a Business Partnership?|Russell Saunders|April 11, 2014|DAILY BEAST
NPY works as a natural tranquilizer that controls anxiety and buffers the effects of stress hormones like norepinephrine.
Thus, they are equipped with wheels, or buffers, on which they can roll along the bottom of the ocean or bay.Every-day Science: Volume VII. The Conquest of Time and Space|Henry Smith Williams
The underframe is provided with spring axle boxes, and also with spring buffers and drawbars.
He had a pillow strapped at the back of his neck, and another on a lower portion of his body for buffers.Reminiscences of Queensland|William Henry Corfield
The last bars chiming in when the buffers joined the chorus with a “jolt, jolt, jolt.”She and I, Volume 2|John Conroy Hutcheson
These bolts were pushed outside, and buffers covered with india-rubber stopped up the holes which let them through.
British Dictionary definitions for buffer (1 of 3)
- an ionic compound, usually a salt of a weak acid or base, added to a solution to resist changes in its acidity or alkalinity and thus stabilize its pH
- Also called: buffer solution a solution containing such a compound