| 释义 |
buffer
buff·er 1 B0533000 (bŭf′ər)n.1. One that buffs, especially a piece of soft leather or cloth used to shine or polish.2. A buffing wheel.
buff·er 2 B0533000 (bŭf′ər)n.1. Something that lessens or absorbs the shock of an impact.2. One that protects by intercepting or moderating adverse pressures or influences: "A sense of humor ... may have served as a buffer against the ... shocks of disappointment" (James Russell Lowell).3. Something that separates potentially antagonistic entities, as an area between two rival powers that serves to lessen the danger of conflict.4. Chemistry A solution that resists a change in acidity when an acid or base is added to it, or a substance that facilitates this resistance.5. Computers A device or area used to store data temporarily.tr.v. buff·ered, buff·er·ing, buff·ers 1. To act as a buffer for or between.2. Chemistry To treat (a solution) with a buffer.3. Computers To hold or collect (data) in a buffer.
[Probably from obsolete buff, to make a sound like a soft body being hit, of imitative origin.]buffer (ˈbʌfə) n1. (Railways) one of a pair of spring-loaded steel pads attached at both ends of railway vehicles and at the end of a railway track to reduce shock due to contact2. a person or thing that lessens shock or protects from damaging impact, circumstances, etc3. (Chemistry) chem a. 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 pHb. Also called: buffer solution a solution containing such a compound4. (Computer Science) computing a memory device for temporarily storing data5. (Electronics) electronics an isolating circuit used to minimize the reaction between a driving and a driven circuit6. (Government, Politics & Diplomacy) short for buffer state7. hit the buffers informal to finish or be stopped, esp unexpectedlyvb (tr) 8. (Electronics) to insulate against or protect from shock; cushion9. (Chemistry) chem to add a buffer to (a solution)[C19: from buff2]
buffer (ˈbʌfə) n1. (General Engineering) any device used to shine, polish, etc; buff2. (General Engineering) a person who uses such a device
buffer (ˈbʌfə) ninformal offensive Brit a stupid or bumbling man (esp in the phrase old buffer)[C18: perhaps from Middle English buffer stammerer]buff•er1 (ˈbʌf ər)
n. 1. an apparatus at the end of a railroad car, railroad track, etc., for absorbing shock during coupling, collisions, etc. 2. any device, material, or apparatus used as a shield, cushion, or bumper, esp. on machinery. 3. any intermediate or intervening shield or device reducing the danger of interaction between two machines, chemicals, electronic components, etc. 4. a person or thing that shields and protects against harm or annoyance or that lessens the impact of a shock or reversal. 5. financial reserves that protect a person, organization, or country against bankruptcy. 6. buffer state. 7. a temporary storage area that holds data until the computer is ready to process it. 8. a. any substance capable of neutralizing both acids and bases in a solution without appreciably changing the solution's original acidity or alkalinity. b. Also called buff′er solu`tion. a solution containing such a substance. v.t. 9. to cushion, shield, or protect. 10. to treat with a buffer. [1825–35; buff2 + -er1] buff•er2 (ˈbʌf ər)
n. 1. a device for polishing or buffing, as a buff. 2. a person who uses such a device. [1850–55] buff·er (bŭf′ər)1. Chemistry A substance that prevents change in the acidity of a solution when an acid or base is added to the solution.2. 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.buffer
Past participle: buffered
Gerund: buffering
| Present |
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| I buffer | | you buffer | | he/she/it buffers | | we buffer | | you buffer | | they buffer |
| Preterite |
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| I buffered | | you buffered | | he/she/it buffered | | we buffered | | you buffered | | they buffered |
| Present Continuous |
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| I am buffering | | you are buffering | | he/she/it is buffering | | we are buffering | | you are buffering | | they are buffering |
| Present Perfect |
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| I have buffered | | you have buffered | | he/she/it has buffered | | we have buffered | | you have buffered | | they have buffered |
| Past Continuous |
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| I was buffering | | you were buffering | | he/she/it was buffering | | we were buffering | | you were buffering | | they were buffering |
| Past Perfect |
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| I had buffered | | you had buffered | | he/she/it had buffered | | we had buffered | | you had buffered | | they had buffered |
| Future |
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| I will buffer | | you will buffer | | he/she/it will buffer | | we will buffer | | you will buffer | | they will buffer |
| Future Perfect |
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| I will have buffered | | you will have buffered | | he/she/it will have buffered | | we will have buffered | | you will have buffered | | they will have buffered |
| Future Continuous |
|---|
| I will be buffering | | you will be buffering | | he/she/it will be buffering | | we will be buffering | | you will be buffering | | they will be buffering |
| Present Perfect Continuous |
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| I have been buffering | | you have been buffering | | he/she/it has been buffering | | we have been buffering | | you have been buffering | | they have been buffering |
| Future Perfect Continuous |
|---|
| I will have been buffering | | you will have been buffering | | he/she/it will have been buffering | | we will have been buffering | | you will have been buffering | | they will have been buffering |
| Past Perfect Continuous |
|---|
| I had been buffering | | you had been buffering | | he/she/it had been buffering | | we had been buffering | | you had been buffering | | they had been buffering |
| Conditional |
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| I would buffer | | you would buffer | | he/she/it would buffer | | we would buffer | | you would buffer | | they would buffer |
| Past Conditional |
|---|
| I would have buffered | | you would have buffered | | he/she/it would have buffered | | we would have buffered | | you would have buffered | | they would have buffered |
Thesaurus| Noun | 1. | buffer - (chemistry) an ionic compound that resists changes in its pHchemical science, chemistry - the science of matter; the branch of the natural sciences dealing with the composition of substances and their properties and reactionsbuffer solution - a solution containing a bufferchemical compound, compound - (chemistry) a substance formed by chemical union of two or more elements or ingredients in definite proportion by weight | | 2. | buffer - a neutral zone between two rival powers that is created in order to diminish the danger of conflictbuffer zonezone - an area or region distinguished from adjacent parts by a distinctive feature or characteristic | | 3. | buffer - an inclined metal frame at the front of a locomotive to clear the trackcowcatcher, fender, pilotframework - a structure supporting or containing somethinglocomotive, locomotive engine, railway locomotive, engine - a wheeled vehicle consisting of a self-propelled engine that is used to draw trains along railway tracks | | 4. | buffer - (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 systembuffer storage, buffer storememory cache, cache - (computer science) RAM memory that is set aside as a specialized buffer storage that is continually updated; used to optimize data transfers between system elements with different characteristicsframe buffer - (computer science) a buffer that stores the contents of an image pixel by pixelkeyboard buffer - a buffer that keeps track of key strokes until the computer is ready to respond to themmemory device, storage device - a device that preserves information for retrievalprint buffer - a buffer that stores data until the printer is readyRAM, random access memory, random memory, random-access memory, read/write memory - the most common computer memory which can be used by programs to perform necessary tasks while the computer is on; an integrated circuit memory chip allows information to be stored or accessed in any order and all storage locations are equally accessiblecomputer science, computing - the branch of engineering science that studies (with the aid of computers) computable processes and structures | | 5. |  buffer - a power tool used to buff surfaces polisherbuffing wheel - a wheel that is covered with soft materialpower tool - a tool driven by a motor | | 6. | buffer - a cushion-like device that reduces shock due to an impactfenderauto, automobile, car, motorcar, machine - a motor vehicle with four wheels; usually propelled by an internal combustion engine; "he needs a car to get to work"device - an instrumentality invented for a particular purpose; "the device is small enough to wear on your wrist"; "a device intended to conserve water" | | 7. | buffer - an implement consisting of soft material mounted on a block; used for polishing (as in manicuring)buffimplement - instrumentation (a piece of equipment or tool) used to effect an end | | Verb | 1. | buffer - add a buffer (a solution); "buffered saline solution for the eyes"modify - make less severe or harsh or extreme; "please modify this letter to make it more polite"; "he modified his views on same-gender marriage" | | 2. | buffer - protect from impact; "cushion the blow"cushion, softenmodify - make less severe or harsh or extreme; "please modify this letter to make it more polite"; "he modified his views on same-gender marriage" |
buffernoun1. safeguard, screen, shield, cushion, intermediary, bulwark a multinational buffer between the two sides2. (Brit. informal) geriatric, dinosaur, fossil (informal), relic, fogey, codger, fuddy-duddy (informal), antique (informal) a collection of old buffersverb1. protect, cover, screen, guard, defend, shelter, cushion, safeguard The company is buffered by long-term contracts with growers.Translationsbuffer (ˈbafə) noun an apparatus for lessening the force with which a moving object strikes something. 緩衝器 缓冲器IdiomsSeebuffbuffer
buffer, solution that can keep its relative acidity or alkalinity constant, i.e., keep its pH constant, despite the addition of strong acids or strong bases. Buffer solutions are frequently solutions that contain either a weak acid and one of its salts or a weak base and one of its salts. Many acid-base reactions take place in living organisms. However, for organisms to perform certain vital functions, the body fluids associated with these functions must maintain a constant pH. For example, blood must maintain a pH of close to 7.4 in order to carry oxygen from the lungs to cells; blood is therefore a powerful buffer.buffer[′bəf·ər] (chemistry) A solution selected or prepared to minimize changes in hydrogen ion concentration which would otherwise occur as a result of a chemical reaction. Also known as buffer solution. (computer science) buffer storage (ecology) An animal that is introduced to serve as food for other animals to reduce the losses of more desirable animals. (electricity) An electric circuit or component that prevents undesirable electrical interaction between two circuits or components. (electronics) An isolating circuit in an electronic computer used to prevent the action of a driven circuit from affecting the corresponding driving circuit. buffer amplifier (engineering) A device, apparatus, or piece of material designed to reduce mechanical shock due to impact. (mining engineering) Blasted material piled against or near a rock face to improve fragmentation and reduce scattering of rock from the next blast. A movable metal plate set in place in a tunnel excavation to limit the amount of rock scattered during blasting. buffer  bud, 2 1. A device, apparatus, or material which reduces mechanical shock due to impact. 2. A device located at the bottom of an elevator hoistway, designed to stop a car or counter-weight from descending beyond its normal limit of travel; motion beyond this limit is taken up by storing or by absorbing and dissipating the kinetic energy of the car or counterweight. Also see oil buffer, spring buffer. 3. Any type of barrier that limits the scattering of rock as a resultbuffer11. one of a pair of spring-loaded steel pads attached at both ends of railway vehicles and at the end of a railway track to reduce shock due to contact 2. Chema. 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 b. a solution containing such a compound 3. Computing a memory device for temporarily storing data 4. Electronics an isolating circuit used to minimize the reaction between a driving and a driven circuit
buffer21. any device used to shine, polish, etc.; buff 2. a person who uses such a device buffer (1)An area of memory used for storing messages. Typically, abuffer will have other attributes such as an input pointer(where new data will be written into the buffer), and outputpointer (where the next item will be read from) and/or a countof the space used or free. Buffers are used to decoupleprocesses so that the reader and writer may operate atdifferent speeds or on different sized blocks of data.
There are many different algorithms for using buffers, e.g.first-in first-out (FIFO or shelf), last-in first-out (LIFO orstack), double buffering (allowing one buffer to be read whilethe other is being written), cyclic buffer (reading or writingpast the end wraps around to the beginning).buffer (2)An electronic device to provide compatibility between twosignals, e.g. changing voltage levels or current capability.bufferA reserved segment of memory within a program that is used to hold the data being processed. Buffers are set up to hold data coming in from and going out to the network or a local file. In a streaming media application, the program uses buffers to store an advance supply of audio or video data to compensate for momentary delays.
With computers, each application can allocate and deallocate its buffers from the general memory pool. For printers and other peripherals, the buffers provide temporary storage for data in the memory of the device. See buffering, double buffering, buffer overflow, buffer flush and bucket.buffer
buffer [buf´er] a substance that, by its presence in solution, increases the amount of acid or alkali necessary to produce a unit change in pH. The bicarbonate buffer system in the blood maintains a balance between bicarbonate and carbon dioxide ions and deterimnes the pH of the blood.buff·er (bŭf'ĕr), 1. A mixture of an acid and its conjugate base (salt), such as H2CO3 or HCO3-; H2PO4-/HPO42-, that, when present in a solution, reduces any changes in pH that would otherwise occur in the solution when acid or alkali is added to it; thus, the pH of the blood and body fluids is kept relatively constant (pH 7.45) although acid metabolites are continually being formed in the tissues and CO2 is lost in the lungs.
See also: conjugate acid-base pair. 2. To add a buffer to a solution and thus give it the property of resisting a change in pH when it receives a limited amount of acid or alkali. buffer Chemistry
(1) A chemical system that minimises the effects—in particular the pH—of changes in the concentration of a substance.
(2) A molecule that serves to prevent large changes in pH by either combining with H+ or by releasing H+ into solution.
(3) A system that minimises the changes in specific chemical species in solution against addition or depletion of the species.
(4) pH buffers: weak acids or weak bases in aqueous solution. The working range is given by pKa +/ 1.
(5) Metal ion buffers: a metal ion chelator (e.g., EDTA), partially saturated by the metal ion acts, as a buffer for the metal ion.
Computers
A storage zone that “resides” temporarily in the RAM (random access memory) and contains either input or output data, remaining there while waiting for an output (or less commonly, an input) device—e.g., a printer—to allow it access to perform a function. Buffer sizes can be increased with “spooling” software or by increased the printer’s RAM.
Drug slang
Regional street drug slang for a crack smoker or a woman who exchanges oral sex for crack.
Molecular biology
A solution containing agents which maintain a constant pH during a biochemical reaction.
Vox populi
A person who acts as a go-between.buffer Chemistry A chemical system that minimizes the effects, in particular the pH, of changes in the concentration of a substancebuff·er (bŭf'ĕr) 1. A mixture of an acid and its conjugate base (salt), such as H2CO3/HCO3; H2PO4/ HPO42-, which, when present in a solution, resists changes in pH that would otherwise occur in the solution when acid or alkali is added to it.
See also: conjugate acid-base pair2. To add a buffer to a solution and thus give it the property of resisting a change in pH. buffer a chemical substance which has the capacity to bond to H+ ions, removing them from solution when their concentration begins to rise and releasing H+ ions when their concentration begins to fall. In this way buffers stabilize the pH of biological solutions and are thus important in maintaining HOMEOSTASIS. HAEMOGLOBIN is an excellent example of a buffer, maintaining a stable pH in the ERYTHROCYTE.Buffer
BufferIn computer science, a temporary storage for data before it can be processed. For example, a word processor may put data in a buffer before sending it to a printer, because a computer operates faster than a printer.See CC-115 Buffalo
See BUFFbuffer
Related to buffer: buffer solutionSynonyms for buffernoun safeguardSynonyms- safeguard
- screen
- shield
- cushion
- intermediary
- bulwark
noun geriatricSynonyms- geriatric
- dinosaur
- fossil
- relic
- fogey
- codger
- fuddy-duddy
- antique
verb protectSynonyms- protect
- cover
- screen
- guard
- defend
- shelter
- cushion
- safeguard
Synonyms for buffernoun (chemistry) an ionic compound that resists changes in its pHRelated Words- chemical science
- chemistry
- buffer solution
- chemical compound
- compound
noun a neutral zone between two rival powers that is created in order to diminish the danger of conflictSynonymsRelated Wordsnoun an inclined metal frame at the front of a locomotive to clear the trackSynonymsRelated Words- framework
- locomotive
- locomotive engine
- railway locomotive
- engine
noun (computer science) a part of RAM used for temporary storage of data that is waiting to be sent to a deviceSynonyms- buffer storage
- buffer store
Related Words- memory cache
- cache
- frame buffer
- keyboard buffer
- memory device
- storage device
- print buffer
- RAM
- random access memory
- random memory
- random-access memory
- read/write memory
- computer science
- computing
noun a power tool used to buff surfacesSynonymsRelated Wordsnoun a cushion-like device that reduces shock due to an impactSynonymsRelated Words- auto
- automobile
- car
- motorcar
- machine
- device
noun an implement consisting of soft material mounted on a blockSynonymsRelated Wordsverb add a buffer (a solution)Related Wordsverb protect from impactSynonymsRelated Words |