| afferent | (noun) a nerve that passes impulses from receptors toward or to the central nervous system | Synonyms: afferent nerve, sensory nerve |
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| bluffer | (noun) a person who tries to bluff other people | Synonyms: four-flusher |
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| buffer | (noun) a cushion-like device that reduces shock due to an impact | Synonyms: fender |
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| (noun) a power tool used to buff surfaces | Synonyms: polisher |
| (noun) an inclined metal frame at the front of a locomotive to clear the track | Synonyms: cowcatcher, fender, pilot |
| (noun) (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 | Synonyms: buffer storage, buffer store |
| (noun) an implement consisting of soft material mounted on a block; used for polishing (as in manicuring) | Synonyms: buff |
| (noun) a neutral zone between two rival powers that is created in order to diminish the danger of conflict | Synonyms: buffer zone |
| (noun) (chemistry) an ionic compound that resists changes in its pH | - |
| caffer | (noun) an offensive and insulting term for any Black African | Synonyms: caffre, kaffir, kafir |
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| candlesnuffer | (noun) an implement with a small cup at the end of a handle; used to extinguish the flame of a candle | - |
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| coffer | (noun) a chest especially for storing valuables | - |
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| (noun) an ornamental sunken panel in a ceiling or dome | Synonyms: caisson, lacunar |
| cofferdam | (noun) large watertight chamber used for construction under water | Synonyms: caisson, pneumatic caisson |
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| counteroffer | (noun) an offer made by someone who has rejected a prior offer | - |
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| dedifferentiation | (noun) the loss of specialization in form or function | - |
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| difference | (noun) the quality of being unlike or dissimilar | - |
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| (noun) a disagreement or argument about something important | Synonyms: conflict, difference of opinion, dispute |
| (noun) a variation that deviates from the standard or norm | Synonyms: departure, deviation, divergence |
| (noun) the number that remains after subtraction; the number that when added to the subtrahend gives the minuend | Synonyms: remainder |
| (noun) a significant change | - |
| differentia | (noun) distinguishing characteristics (especially in different species of a genus) | - |
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| differential | (noun) a bevel gear that permits rotation of two shafts at different speeds; used on the rear axle of automobiles to allow wheels to rotate at different speeds on curves | Synonyms: differential gear |
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| (noun) a quality that differentiates between similar things | - |
| (noun) the result of mathematical differentiation; the instantaneous change of one quantity relative to another; df(x)/dx | Synonyms: derivative, derived function, differential coefficient, first derivative |
| differentiation | (noun) the mathematical process of obtaining the derivative of a function | - |
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| (noun) a discrimination between things as different and distinct on the basis of their characteristics or attributes | Synonyms: distinction |
| (noun) (biology) the structural adaptation of some body part for a particular function | Synonyms: specialisation, specialization |
| differentiator | (noun) a person who (or that which) differentiates | Synonyms: discriminator |
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| duffer | (noun) an incompetent or clumsy person | - |
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| efferent | (noun) a nerve that conveys impulses toward or to muscles or glands | Synonyms: efferent nerve, motor nerve |
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| effervescence | (noun) the property of giving off bubbles | Synonyms: bubbliness, frothiness |
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| (noun) the process of bubbling as gas escapes | - |
| gaffer | (noun) a person who exercises control over workers | Synonyms: boss, chief, foreman, honcho |
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| (noun) an elderly man | Synonyms: antique, old-timer, old geezer, oldtimer |
| (noun) an electrician responsible for lighting on a movie or tv set | - |
| gauffer | (noun) an ornamental frill made by pressing pleats | Synonyms: goffer |
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| (noun) an iron used to press pleats and ridges | Synonyms: gauffering iron, goffer, goffering iron |
| goffer | (noun) an ornamental frill made by pressing pleats | Synonyms: gauffer |
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| (noun) an iron used to press pleats and ridges | Synonyms: gauffer, gauffering iron, goffering iron |
| (noun) a zealously energetic person (especially a salesman) | Synonyms: gopher |
| indifference | (noun) the trait of lacking enthusiasm for or interest in things generally | Synonyms: apathy, numbness, spiritlessness |
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| (noun) the trait of remaining calm and seeming not to care; a casual lack of concern | Synonyms: nonchalance, unconcern |
| (noun) unbiased impartial unconcern | - |
| (noun) apathy demonstrated by an absence of emotional reactions | Synonyms: emotionlessness, impassiveness, impassivity, phlegm, stolidity, unemotionality |
| offer | (noun) a usually brief attempt | Synonyms: crack, fling, go, pass, whirl |
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| (noun) something offered (as a proposal or bid) | Synonyms: offering |
| (noun) the verbal act of offering | Synonyms: offering |
| offerer | (noun) someone who presents something to another for acceptance or rejection | Synonyms: offeror |
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| offering | (noun) the act of contributing to the funds of a church or charity | Synonyms: oblation |
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| (noun) something offered (as a proposal or bid) | Synonyms: offer |
| (noun) the verbal act of offering | Synonyms: offer |
| (noun) money contributed to a religious organization; item or items contributed to a religious organization for religious purposes | - |
| offeror | (noun) someone who presents something to another for acceptance or rejection | Synonyms: offerer |
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| offertory | (noun) the offerings of the congregation at a religious service | - |
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| proffer | (noun) a proposal offered for acceptance or rejection | Synonyms: proposition, suggestion |
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| puffer | (noun) any of numerous marine fishes whose elongated spiny body can inflate itself with water or air to form a globe; several species contain a potent nerve poison; closely related to spiny puffers | Synonyms: blowfish, globefish, pufferfish |
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| (noun) delicacy that is highly dangerous because of a potent nerve poison in ovaries and liver | Synonyms: blowfish, pufferfish, sea squab |
| pufferfish | (noun) any of numerous marine fishes whose elongated spiny body can inflate itself with water or air to form a globe; several species contain a potent nerve poison; closely related to spiny puffers | Synonyms: blowfish, globefish, puffer |
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| (noun) delicacy that is highly dangerous because of a potent nerve poison in ovaries and liver | Synonyms: blowfish, puffer, sea squab |
| puffery | (noun) a flattering commendation (especially when used for promotional purposes) | - |
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| quaffer | (noun) a person who drinks heartily | - |
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| scoffer | (noun) someone who jeers or mocks or treats something with contempt or calls out in derision | Synonyms: flouter, jeerer, mocker |
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| (noun) someone who eats food rapidly and greedily | Synonyms: gorger |
| scuffer | (noun) a lightweight flexible sandal with a sturdy sole; worn as play shoes by children and as sportswear by adults | - |
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| sniffer | (noun) a person who sniffs | - |
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| snuffer | (noun) a cone-shaped implement with a handle; for extinguishing candles | - |
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| (noun) a person who uses snuff | Synonyms: snuff user |
| (noun) a person who snuffs out candles | - |
| snuffers | (noun) scissors for cropping and holding the snuff of a candlewick | - |
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| staffer | (noun) an employee who is a member of a staff of workers (especially a member of the staff that works for the President of the United States) | Synonyms: staff member |
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| stuffer | (noun) an advertising circular that is enclosed with other material and (usually) sent by mail | - |
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| (noun) a craftsman who stuffs and mounts the skins of animals for display | Synonyms: animal stuffer, taxidermist |
| sufferance | (noun) patient endurance especially of pain or distress | - |
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| (noun) a disposition to tolerate or accept people or situations | Synonyms: acceptance, toleration |
| sufferer | (noun) a person suffering from an illness | Synonyms: diseased person, sick person |
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| (noun) one who suffers for the sake of principle | Synonyms: martyr |
| suffering | (noun) feelings of mental or physical pain | Synonyms: hurt |
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| (noun) psychological suffering | Synonyms: distress, hurt |
| (noun) a state of acute pain | Synonyms: agony, excruciation |
| (noun) misery resulting from affliction | Synonyms: woe |
| whiffer | (noun) a batter who strikes out by swinging at and missing the third strike | - |
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