buffer

1
[ buhf-er ]
/ ˈbʌf ər /

noun

verb (used with object)

Origin of buffer

1
First recorded in 1825–35; buff2 + -er1
Related formsun·buff·ered, adjective

Definition for buffer (2 of 4)

buffer

2
[ buhf-er ]
/ ˈbʌf ər /

noun

a device for polishing or buffing, as a buff stick or buff wheel.
a worker who uses such a device.

Origin of buffer

2
First recorded in 1850–55; buff1 + -er1

Definition for buffer (3 of 4)

buffer

3
[ buhf-er ]
/ ˈbʌf ər /

noun British Slang.

a foolish or incompetent person.
a fellow; man.
a chief boatswain's mate in the British navy.

Origin of buffer

3
First recorded in 1680–90; origin uncertain

Definition for buffer (4 of 4)

buff

1
[ buhf ]
/ bʌf /

noun

adjective

verb (used with object)

Origin of buff

1
1545–55; 1900–05 for def 4; earlier buffe wild ox, back formation from buffle < Middle French < Late Latin būfalus; see buffalo; (def 4) originally a person enthusiastic about firefighting and firefighters, allegedly after the buff uniforms once worn by volunteer firefighters in New York City
Related formsbuff·a·bil·i·ty, nounbuff·a·ble, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for buffer

British Dictionary definitions for buffer (1 of 6)

buffer

1
/ (ˈbʌfə) /

noun

verb (tr)

to insulate against or protect from shock; cushion
chem to add a buffer to (a solution)

Word Origin for buffer

C19: from buff ²

British Dictionary definitions for buffer (2 of 6)

buffer

2
/ (ˈbʌfə) /

noun

any device used to shine, polish, etc; buff
a person who uses such a device

British Dictionary definitions for buffer (3 of 6)

buffer

3
/ (ˈbʌfə) /

noun

British informal, offensive a stupid or bumbling man (esp in the phrase old buffer)

Word Origin for buffer

C18: perhaps from Middle English buffer stammerer

British Dictionary definitions for buffer (4 of 6)

buff

1
/ (bʌf) /

noun

  1. a soft thick flexible undyed leather made chiefly from the skins of buffalo, oxen, and elk
  2. (as modifier)a buff coat
  1. a dull yellow or yellowish-brown colour
  2. (as adjective)buff paint
Also called: buffer
  1. a cloth or pad of material used for polishing an object
  2. a flexible disc or wheel impregnated with a fine abrasive for polishing metals, etc, with a power tool
informal one's bare skin (esp in the phrase in the buff)

verb

to clean or polish (a metal, floor, shoes, etc) with a buff
to remove the grain surface of (a leather)

Word Origin for buff

C16: from Old French buffle, from Old Italian bufalo, from Late Latin būfalus buffalo

British Dictionary definitions for buffer (5 of 6)

buff

2
/ (bʌf) /

verb

(tr) to deaden the force of

noun

archaic a blow or buffet (now only in the phrase blind man's buff)

Word Origin for buff

C15: back formation from buffet ²

British Dictionary definitions for buffer (6 of 6)

buff

3
/ (bʌf) /

noun

informal an expert on or devotee of a given subjecta cheese buff

Word Origin for buff

C20: originally US: an enthusiastic fire watcher, from the buff-coloured uniforms worn by volunteer firemen in New York City
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Medicine definitions for buffer

buffer

[ bŭfər ]

n.

A substance that minimizes change in the acidity of a solution when an acid or base is added to the solution.

v.

To treat a solution with a buffer.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

Science definitions for buffer

buffer

[ bŭfər ]

Chemistry A substance that prevents change in the acidity of a solution when an acid or base is added to the solution or when the solution is diluted. Buffers are used to make solutions of known pH, especially for instrument calibration purposes. Natural buffers also exist in living organisms, where biochemical reactions are very sensitive to changes in pH.
Computer Science A device or an area of a computer that temporarily stores data that is being transferred between two machines that process data at different rates, such as a computer and a printer.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

Culture definitions for buffer

buffer


In chemistry, the components of a solution that can neutralize either an acid or a base and thus maintain a constant pH.

Note

Buffers are often used in medications designed to decrease acidity in the stomach.
The New Dictionary of Cultural Literacy, Third Edition Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

Idioms and Phrases with buffer

buff


see in the buff.

The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.