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 no longer active; extinguished 3.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 no longer active; extinguished 3.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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181. The extinction coefficient of the water is the sum of absorption by the water itself, by particles suspended in the water, and especially by dissolved color substances.
182. Mammoths and mastodons are both elephant-like creatures with long tusks that both faded into extinction on this continent more than 12, 800 years ago.
183. Lamarck thought there was an inherent progressive tendency driving organisms continuously towards greater complexity, in parallel but separate lineages with no extinction.
184. Blooming of Bacteria and Algae: Possible Killer of Devonian Frasnian - Famennian Mass Extinction?
185. The discovery gives conservationists hope that the fox—listed as threatened by California—may just outfox extinction overall, scientists say.
186. Blue whale of Antarrct has plunged to less than 1% of the original abundance. West Pacific grey whale hovers on the edge of extinction with just over 100 remaining.
187. Because of the confusion caused by the indiscriminate use of the term "Quagga" for any zebra, the true Quagga was hunted to extinction without this being realized until many years later.
188. The core of optical reshaping is a decision gate featuring signal extinction ratio enhancement and noise reduction.
189. The numerical simulation indicates that, larger biasing current and smaller detuning expand the dynamic range of conversion efficiency and extinction ratio, but worsen the frequency chirp.
190. Many species are in peril of extinction because of our destruction of their natural habitat.
191. Native Australian Charlie Mungulda is the only person alive known to speak that language, one of thousands around the world on the brink of extinction.
191. Wish you can benefit from our online sentence dictionary and make progress day by day!
192. But at higher temperature, PD extinction voltage is seen clearly.
193. Some scientists think that massive ocean extinction events in the past caused Earth’s carbon cycle to fluctuate wildly for millions of years afterwards.
194. Article 6 The establishment, transference or extinction of ship mortgage or bare boat chartering shall be registered at the Ship Registration Administration.
195. This includes Bring Back the Salmon, which helps the return of Atlantic salmon to Lake Ontario after its local extinction over 100 years ago.
196. It shows that micro-discharge extinction potential drops along inverted catenary with the reduction in angle of contact.
197. The animals were ruthlessly hunted to the verge of extinction.
198. The theory is the brainchild of Professor Bill Napier, from Cardiff University, who says it explains the mysterious period of extinction around 11, 000 BC.
199. And then we draw a conclusion by lucubrating that the influence of the extinction ratio is not linear with system homodyne crosstalk requirements in the case of a single crosstalk signal.
200. Rodians evolved as hunters, killing much of the wildlife and predacious species on their planet to extinction.
201. "Before the mass extinction, most of the foraminifera species were comparatively large, very flamboyant, very specialized, very ornate, with many chambers, " Keller explained.
202. Theories about the extinction of dinosaurs are still highly conjectural.
203. Zoologists failed to find a Yangtze River dolphin during a survey of the creature's historic range, the first likely extinction of a large vertebrate in 50 years.
204. While the number of spoken languages continues to decline, at least one new one has been added to the inventory, though Koro too is on the brink of extinction.
205. As the coastal waters were heavily fished, the seals remained on the southern-most island and the giant moa(a huge flightless bird)was eventually hunted to extinction.
206. At the end of the Ordovician period, 440m years ago, a mass extinction event wiped out almost all corals and fish, and 25% of all families of creatures.
207. The crabs the children catch can be named in an instant by Zheng Qinghai. The majority are common to the region, but the endemic species of Taiwanese fiddler crab is facing extinction.
208. Mr. Gao Chuan-chi asked if the author was foretelling the species replacing human being after its extinction. Mr.
209. This is how Cornish and some dialects of Scottish Gaelic slipped into extinction.
210. The building of flamelet database is very important a step in improving flamelet model. It includes improving the exactness and completeness of combustion states as well as extinction limit capturing.
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.