(a.) Extinguished; put out; quenched; as, a fire, a light, or a lamp, is extinct; an extinct volcano.
(a.) Without a survivor; without force; dead; as, a family becomes extinct; an extinct feud or law.
(v. t.) To cause to be extinct.
Example Sentences:
(1) The stages of mourning involve cognitive learning of the reality of the loss; behaviours associated with mourning, such as searching, embody unlearning by extinction; finally, physiological concomitants of grief may influence unlearning by direct effects on neurotransmitters or neurohormones, such as cortisol, ACTH, or norepinephrine.
(2) The effect upon ethanol responding was found not to resemble a pattern of extinction, but rather was best described as a general overall reduction in responding.
(3) In a recent study, Orr and Lanzetta (1984) showed that the excitatory properties of fear facial expressions previously described (Lanzetta & Orr, 1981; Orr & Lanzetta, 1980) do not depend on associative mechanisms; even in the absence of reinforcement, fear faces intensify the emotional reaction to a previously conditioned stimulus and disrupt extinction of an acquired fear response.
(4) We conclude that the procedure used in this study is a non-intrusive intervention that is an extension of the current literature pertaining to sensory extinction.
(5) After 40 programmed minutes of acquisition and 12 min of maintenance, without notice, both schedules changed to extinction for 28 min.
(6) This differential absorbance is linear with increasing concentrations of Na2MoO4 and was used to calculate the molar extinction coefficient of molybdochelin at 425 nm (epsilon similar to 6,200).
(7) However, during massed testing, all subjects trained with response contingent CS termination showed an overall extinction influence, which was most pronounced in the medial subgroup, although the laterals showed frequency control as well.
(8) When reinforcement for competing behavior was withdrawn, however, rats resumed their original behavior and there were no overall savings in total responses to extinction.
(9) The relative amount of the crystals was measured in both amoeba strains on the basis of the integral extinction value.
(10) Chronic extinction of chain closed conditioned reflex in intact rabbits took five to six days.
(11) The amounts of phosphatidylcholine and sphingomyelin could be determined by high-performance liquid chromatography and ultraviolet absorption if the apparent extinction coefficient of the material analyzed was established.
(12) In a number of neurones the extinction of reflexes either does not change the reaction to acetylcholine, or enhances it.
(13) In Experiment 3, following an unsignaled reinforcement delay, groups receiving either no event or signaled food in the context responded faster in extinction than groups receiving no context exposure or unsignaled food.
(14) The optical extinction decreases as the red cell agglutinates grow, giving a parametric estimate of the haemagglutination rate.
(15) By calculating for DNA standard solutions the value of the ratio between the extinction at 665 nm after 15 min to the extinction of 600 nm after 2 min of the orcinol reaction it is possible to increase specifiaty of the orcinol method for determination of the RNA content.
(16) To lose the Sundarbans would be to move a step closer to the extinction of these majestic animals," said ZSL tiger expert Sarah Christie.
(17) Values obtained for thebuoyant density, isoelectric point, and extinction coefficient differed minimally; major differences were observed in the molecular weight and the characterisitc width of cylinders formed by in vitro-assembled T-layer of the wild-type and variant.
(18) The CS+ preference persisted for several weeks during extinction tests when both the CS+ and CS- were paired with IG water or with no infusions.
(19) The extinction coefficient at 550 nm for the oxidized enzyme is about 5300 (M subunit)-1 X cm-1.
(20) On this planet, extinction is the norm – of the 4 billion species ever thought to have evolved, 99% have become extinct.
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.