(v. t.) To extinguish; to overwhelm; to make an end of; -- said of flame and fire, of things burning, and figuratively of sensations and emotions; as, to quench flame; to quench a candle; to quench thirst, love, hate, etc.
(v. t.) To cool suddenly, as heated steel, in tempering.
(v. i.) To become extinguished; to go out; to become calm or cool.
Example Sentences:
(1) The extreme quenching of the dioxetane chemiluminescence by both microsomes and phosphatidylcholine, as a model phospholipid, implies that despite the low quantum yield (approx.
(2) The drug is extracted from serum or urine with ethyl acetate, separated by TLC, and determined by fluorescence quenching densitometry.
(3) Formation of a complex between alpha-tocopherol or its analogues in the excited state and fatty acids or their hydroperoxides has been suggested basing on the fluorescence quenching experimental data.
(4) Quenching of intrinsic fluorescence of (Ca2+-Mg2+)-ATPase by acrylamide, performed in the presence of Ca2+, gave evidence for a single class of tryptophan residues with Stern-Volmer constant (KSV) of 10 M-1.
(5) The 23Na double-quantum signal was quenched in both the extracellular and the intracellular compartments with increasing concentration of Li in each compartment, along with an increase in the 23Na T1 both intra- and extracellularly.
(6) Binding increases the fluorescence intensity of Tyr-49 by 130% while the fluorescence of the hormone tyrosine is almost completely quenched.
(7) Addition of 2,6-dimethylbenzoquinone caused quenching of these absorbance changes.
(8) These observations lead to the hypothesis that acidosis quenches fluorescence in distal skin flaps.
(9) The degree of quenching was accurately predicted by a simple relation derived in this paper, as well as a more complex equation previously developed by Tweet, et al.
(10) Subtilin may slightly enter the hydrophobic core as suggested by tryptophan fluorescence quenching and liposome fusion experiments.
(11) Greater than 99% of the polymerization reaction products were quenched by the addition of 2.0 mM ascorbate.
(12) Acoustic probe-based assays can enhance assay and laboratory efficiency through testing for multiple analytes in a single sample or increasing available binding surface area (by using probe and well surfaces simultaneously), and by eliminating quenching.
(13) The second-order rate constants appear to be at least 3 orders of magnitude lower than the second-order constants for quenching of the fluorescent probes; this is taken as a clear indication that ubiquinone diffusion is not the rate-determining step in the quinone-enzyme interaction.
(14) Accessibility to iodide was much lower, as was the rate of quenching by iodide, adding support to the conclusions from acrylamide quenching.
(15) An ATP-dependent, N-ethylmaleimide-inhibitable, 3,3',4',5-tetrachlorosalicylanilide-reversible, and chloride-attenuated quench of bis(1,3-dibutylbarbituric acid-(5] pentamethinoxonol fluorescence was seen, consistent with net transfer of positive charge into the vesicles.
(16) Quenching data indicated that five out of 22 tryptophans in CBH are surface-localized and are available for quenching with both KI and acrylamide, and three other tryptophans are buried and are available only to acrylamide.
(17) Acid quenching of a stiochiometric reaction between Ac(= S)CoA and citrate synthase following the transient quantitatively regenerates Ac(= S)CoA, indicating carbon-carbon bond formation had not yet occurred.
(18) The pulsed laser photolysis products of the charge-transfer quenching reaction were examined.
(19) The highest yield of amino acids with the quench reaction was 9 x 10-7 molecules per erg of input energy.
(20) Tris-washed chloroplast enriched in the photosystem II reaction center species Z+Q- and ZQ- are nearly four times more sensitive to nitrobenzene quenching than those enriched in Z+Q.
Slake
Definition:
(a.) To allay; to quench; to extinguish; as, to slake thirst.
(a.) To mix with water, so that a true chemical combination shall take place; to slack; as, to slake lime.
(v. i.) To go out; to become extinct.
(v. i.) To abate; to become less decided.
(v. i.) To slacken; to become relaxed.
(v. i.) To become mixed with water, so that a true chemical combination takes place; as, the lime slakes.
Example Sentences:
(1) Powdered slaked lime applied to the chewed Areca nut with Piper betle inflorescence at the corner of the mouth causes the mean pH to rise to 10, at which reactive oxygen species are generated from betel quid ingredients in vitro.
(2) Photograph: Nerissa Sparkman This being Dublin, visitors to Stoneybatter will find no shortage of opportunities to slake their thirst.
(3) A link between the generation of areca nut-related N-nitrosamines in the saliva, the induction of genotoxic damage in the oral mucosa, as judged by an increase in micronucleated exfoliated cells (MEC), and a low incidence of oral cancer was studied in 2 population groups characterized by their habit of chewing quids without tobacco: Guamanians, who chew areca nuts (Areca catechu) with or without the addition of betel leaf (Piper betle); Taiwanese, who use areca nut, betel leaf or inference and slaked lime.
(4) Watering crops, slaking thirst in expanding cities, cooling power plants, fracking oil and gas wells – all take water from the same diminishing supply.
(5) "Reverse"-cigar smokers (who hold the burning end of cigars within the mouth), dippers (who place a mixture of Khaini-tobacco and slaked lime into the lower gingival groove) and users of tobacco-containing toothpaste (gudakhu) in Orissa, India, were examined for precancerous oral lesions, the frequency of micronucleated cells at 3 different intra-oral sites, and levels of tobacco-specific nitrosamines (TSNA) in the saliva.
(6) I have come to the conclusion that the smoked tobacco and the slaked lime in the Indian "Pan" are the two important carcinogenic agents.
(7) Then, they report on the three main basic components: Piper betle L. leaf, Areca catechu nut, and slaked lime.
(8) This illness will be caused by longterm exposure in viniculture against "Bordeaux mixture" a solution of copper sulphate and slaked lime.
(9) The restaurateur Leonid Shutnov will soon open Biblioteka in St James, where he will offer 100 vintages of Château d'Yquem and 80 of Château Mouton Rothschild, should 79 of Château Mouton Rothschild not be enough to slake the thirst of London's rich.
(10) Finally, some exasperated nutritionist will pop up and say, to be honest: "This is all sugar that doesn't fill you up and doesn't even slake your thirst particularly well."
(11) Not even a majority Conservative government in 2015 will slake the thirst for EU departure of the Eurosceptics.
(12) In the case of many oropharyngeal cancers in Asia and Africa it is the alkaline slaked lime in the betel quid which is responsible; in the case of gastric cancers it is the reflux of the alkaline duodenal contents into the stomach; in the case of colon it is the absence of roughage, cellulose and vegetable fibres from the diet; in the case of the cervix uteri it is the frequency of coitus which gives rise to a highly alkaline seminal fluid; and in the case of cancer lung it is the alkaline cigarette smoke.
(13) Europeans slaked their need for labour in the colonies – in the mines and on the plantations – not only by enslaving indigenous Americans but also by shipping slaves across the Atlantic from Africa.
(14) Different strategies will be required in the administration of chemopreventive agents in order to trap ROS formed in the alkaline (due to the addition of slaked lime) chewing mixture within the saliva of a chewer, to scavenge ROS within mucosal cells exposed to an array of tobacco- or areca nut-related carcinogens or tumour promoters, and to inhibit the action of ROS released from ROS-generating white cells during lymphocytic infiltration of the oral mucosa at a precancerous stage.
(15) The frequency of MEC did not increase in the oral mucosa of areca nut chewers who do not use slaked lime, but showed a small but significant elevation in individuals using lime-containing quids.
(16) Zero Dark Thirty slakes a thirst for vengeance and leaves an aftertaste of gall.
(17) Here’s Tom Jenkins’s match gallery from Craven Cottage Updated at 4.17pm GMT 4.10pm GMT More goals in the Championship ... Leicester have taken a two-goal lead against Charlton at the King Power Stadium, courtesy of Danny Drinkwater, who has slaked his thirst for liquid finishing to make it 2-0.
(18) And still it wasn’t enough to slake the insatiable thirst of the financial markets for more and more stimulus.
(19) A giant cross made of wooden slakes was erected on the grassy slope near the Washington Monument.
(20) Andy Murray’s thirst for making history could not be denied here on Sunday – even by lingering but passing pain in his back – and will be further slaked when Great Britain contest their first Davis Cup final in 37 years.