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 no longer active; extinguished 3.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 no longer active; extinguished 3.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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151. On that scale the Hangenberg event, an extinction 359 million years ago at the end of the Devonian period, was considered a minor blip. Not any more.
152. Results showed that the extinction angle reflected the degree of anisotropy of pyrocarbon.
153. The development tendency of vacuum switch in the future is to miniaturize vacuum extinction chamber and develop high voltage vacuum switch and low voltage vacuum switch.
154. Azo dyestuff formed by (1) has great color tone, macromolecule extinction coefficient and good storage stability, so it can be made into imaging dye stuff and colorant.
155. With larger signal power, smaller probe power, suitable conversion interval and downwards conversion mode, the output extinction ratio can be enhanced.
156. There is a case of an oysterlike bivalve that evolved a more and more spiraled shell until, just before extinction, the valves could barely open.
157. Compared sequential cropping pattern ( WCSCP ), WCCCP has higher light interception amount and less light extinction coefficient.
158. The simulation model shows that, at high or medium mortality level, the probability of extinction for Chinese River Dolphin is 1. 0 or around 0. 5 within the next 100 years.
159. Our Lakota language is an Endangered Language, on the verge of extinction.
160. A cruel twist of mutation among the Theelin led to genetic incompatibility among their own kind, dooming the species to extinction.
161. These findings are consistent with other evidence that anisomycin blocks both the consolidation of original learning and extinction.
161. Sentencedict.com is a sentence dictionary, on which you can find nice sentences for a large number of words.
162. Representative elements of order Albaillellaria firstly appear in Silurian, which prosperous in Late Devonian, and extinction in end-Permian, is the characteristic group of Late Paleozoic Radiolaria.
163. Author holds liability could be counter - plea with fair use, copyright lose or extinction of prescription.
164. It was extinction by dilution, and to the ornithologists it was just as tragic as the more dramatic demise of the passenger pigeon or the Carolina parakeet.
165. Pragmatistic culture is in conformity with era taking surviving or saving the nation from extinction as theme .
166. The last chapter definitizes the concept of extinction of agent right and points out its legal results, mainly discussing exterminating reasons of legal agent right and commission agent right.
167. Function and configuration of extinction ratio testing system of pulse laser range finder are described.
168. The creature lived in Antarctica during the mass extinction at the end of the Permian period, which wiped out 95% of all life in the oceans and 70% of all land life.
169. A bigger mass extinction, at the end of the Permian period 251m years ago, killed 70% of the world's land vertebrates (and 96% of all marine animals) and paved the way for the age of reptiles.
170. The mass extinction coefficient of smoke particles is an intrinsic physical parameter to character shielding property.
171. Based on the principle of full flow extinction, this paper excogitated a pocketable opacity smoke meter.
172. "My guess is that the paddlefish and the Yangtze sturgeon are on the way to extinction already but there are other species that the reserve may be critically important for," Dudgeon warned.
173. With a number of the brands on the December list either gone or on a short-term path to extinction, 24/7 Wall St. has put together the latest version of the Ten Brands that Will Disappear.
174. The ultimate extinction of the dinosaurs 6300 years ago in the Mesozoic and Cenozoic Tertiary Paleocene.
175. The nonprofit marine conservation group Oceana recently posted a petition asking Congress to save bluefish tuna, a fish rapidly facing extinction because of unmonitored overfishing.
176. So that the dark could attempt to find a way to waylay real ascension causing earth to sink into extinction.
177. Chinese people do not subjugated, but it faces the danger of extinction.
178. To save his dynasty from extinction, Grand Duke Karl needed to find a way to preserve the Z?hringen line. Granting succession rights to his half-uncles seemed the ideal solution.
179. A trumpeter swan glides across the surface of the Yellowstone River. Trumpeter swans once faced extinction; today their numbers are rebounding.
180. The results show that the mass extinction coefficient of the hollow particles increases to a great extent when contrasted with that of the solid ones unde.
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.