(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(8) When reinforcement for competing behavior was withdrawn, however, rats resumed their original behavior and there were no overall savings in total responses to extinction.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.
Vandalic
Definition:
(a.) Of or pertaining to the Vandals; resembling the Vandals in barbarism and destructiveness.
Example Sentences:
(1) "The problem in the community is that the elderly who live on their own on ground floors are frightened to open the windows because of vandalism and burglary," he says.
(2) There could be no doubt who these deliberate vandals were, either: unelected members of the House of Lords, and the 48% of the country who failed to vote for Brexit.
(3) Tory toffs repelling undesirable immigrants, providing better schools, using welfare reform as a pathway to work, clearing vandals, yobs and drunks from the streets and standing up to our masters in Brussels would be very popular, and the word would soon be forgotten.
(4) Will Francis, director, Vandal London Facebook Twitter Pinterest Will has worked with a variety of global brands including Net-a-Porter, Samsung, Spotify, Microsoft, Warner Music and Nike Foundation to innovate in social media, something he’s been doing since his days as editor of MySpace in the mid-late noughties.
(5) They know the truth, as we did on Saturday, that the march really could be the start of a fightback against economic and social vandalism.
(6) Vandals have spray painted the word “evil” across a far north Queensland mosque – an act the local mayor describes as deeply saddening.
(7) "We must make sure that those who want to advertise [with] women's images in the city can do so without fear of vandalism and defacement of billboards or buses showing women," he has said.
(8) Clegg also defended the right of local authorities to consider evicting the families of vandals and looters but stressed that the issue had to be dealt with carefully and sensitively.
(9) A cost-benefit analysis indicated that potential savings, primarily in reduced vandalism but also in reduced police and fire costs, greatly exceeded the cost of mounting the program.
(10) In response to Rousseff's promises and concerns about the vandalism that followed clashes with police, the organisers plan to set new guidelines for the protests.
(11) In the micro-economics of obscure music promotion the vandalism of a cloth cyclops dispenser could be the point at which your break-even point disappears over the event horizon.
(12) The chief of public security said that such acts of vandalism did not come under the definition of freedom of expression protected by the law.
(13) Cemetery remains exposed through vandalism or natural phenomena are frequently brought to the attention of law enforcement agents or medical examiners.
(14) There’s no graffiti, no vandalism and scarcely any crime.
(15) I can already feel it piling into the garbage segment of my political memory, so that one day in the future, Javid’s oaths will have become I, the undersigned, do hereby promise to defend John Major’s cones around Theresa May’s racist vans , protect them from the vandalism of ridicule, because that is the British way; to tolerate views you disagree with, including this stupid oath.
(16) Being a toddler, she toddled a bit; she knocked over a bottle of Dettol spray, and in a staggering act of pre-school vandalism, broke the nozzle.
(17) This violence and vandalism is disgraceful criminal behaviour.
(18) Public school vandalism was investigated with a sample of students in 7th through 12th grade.
(19) "This behaviour was criminal behaviour," said Johnson of the recent riots – but in the past his attitude to vandalism has been more nuanced.
(20) They have been reviled as vandals, hooligans and lunatics.