Synonym: defunctness, experimental extinction, extermination, extinguishing, quenching. Similar words: distinction, sanction, function, compunction, and function, functional, malfunction, dysfunction. Meaning: [-kʃn] 
n. 1. no longer in existence 2. no longer active; extinguished 3. the reduction of the intensity of radiation as a consequence of absorption and radiation 4. complete annihilation 5. a conditioning process in which the reinforcer is removed and a conditioned response becomes independent of the conditioned stimulus 6. the act of extinguishing; causing to stop burning.
n. 1. no longer in existence 2. no longer active; extinguished 3. the reduction of the intensity of radiation as a consequence of absorption and radiation 4. complete annihilation 5. a conditioning process in which the reinforcer is removed and a conditioned response becomes independent of the conditioned stimulus 6. the act of extinguishing; causing to stop burning. 
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211. Droplet ignition and extinction in practical combustors are strongly influenced by forced convection and turbulence.
212. During the voltage recovery period after the extinction of fault arc, the amplitude and phase of transient fault voltage is essentially different from those of permanent fault voltage.
213. Indeed, I found afterwards that horses, cattle, sheep, dogs, had followed the Ichthyosaurus into extinction.
214. This animal spread across the massive, ancient continent of Pangea after the end of the Permian Extinction.
215. Females become rare, causing fewer young dinosaurs to be born and species to dwindle to extinction.
216. The molecular extinction coefficient is equal to the ratio of the log of the intensity of the incident and emergent light.
217. Set mainly on the Jurassic undercliff at Lyme Regis, the novel plays with the idea that the Victorian bourgeoisie — and the kind of novel that represents it — is on the brink of extinction.
218. The beauty of the base-closing bill...is that is takes Congress off the hook. A blue-ribbon commission would pick the bases marked for well-deserved extinction.
219. A new type of method for estimating extinction efficient boundary values with least square fitting for inversion of slant angle lidar measurement is reported.
220. Extinction and colonization account for the depauperate flora and fauna of islands when compared to the adjacent mainland.
221. The economists say the competition otter to the brink of extinction.
222. "What's striking is how fast the extinction was," says paleontologist Douglas Erwin of the Smithsonian National Museum of Natural History in Washington, D.C.(Sentencedict.com ), a co-author on the paper.
223. No, but striped hyena are now rare due to hunting and habitat destruction. Populations in North Africa and Arabia are in danger of extinction.
224. With rising temperatures, this endangered reptile could produce all male offspring by 2085, guaranteeing its extinction, a new study finds.
225. One of the most important causes of extinction is loss of habitat.
226. Cloning saves the endangered species from extinction and keeps the ecological balance.
227. However, the invasion of the so-called elpistostegalians—distant relatives of the coelacanth—"got wiped out by these extinction events, " McGhee explained.
228. American national emblem the bald eagle on the verge of extinction and under on and on.
229. The optical and infrared data also measured the extinction in these molecular gas clouds.
230. The Mass specific extinction coefficient is a fairly universal constant, so can be left at the default value.
231. Infrared extinction ability and application of tiny graphite powder in combustible anti - infrared smoke screen were studied.
232. According to "General Surveys", the effect of negative prescription is composed of three doctrines: extinction of subjective right, extinction of claims and occurrence of right to counterargument.
233. In the extinction of animal, the thylacine is the worst.
234. Excessive aquaculture and cultivation were the most important causes of extinction of aquatic fern.
235. Its index of refraction is the same as the common sample, but the extinction coefficient is smaller.
236. The story of the Passenger Pigeon is one of the most tragic extinction stories in modern times.
237. The positive invariant property, eventual boundedness, non-persistence, permanence, extinction, and globally asymptotic stability of the system was investigated.
238. International financial monopoly capital, the extinction of the middle class, with distinctive features of the international.
239. Even, noble attempts to save endangered species from extinction by nuclear transfer have been tried, and in some cases resulted in live animals (wild cats, gaur and mouflon sheep).
240. The Tasman booby (Sula tasmani), a subspecies of the masked booby (Sula dactylatra), was nearly eaten into extinction at two points in history.
More similar words: distinction, sanction, function, compunction, and function, functional, malfunction, dysfunction, distinctive, action, auction, section, fiction, reduction, election, fraction, reaction, infection, selection, objection, direction, prediction, collection, inspection, conviction, reflection, production, attraction, dictionary, connection.