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 no longer active; extinguished 3.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 no longer active; extinguished 3.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. 
Random good picture Not show
121. But once established, these lines underwent predictable developments towards increasing specialization - and eventually to overspecialization and extinction.
122. The golden eagle, at one time persecuted to near extinction by game keepers, is now a strictly protected bird.
123. Henceforth this system provided the framework for his preoccupation with the problems of the extinction and origin of species.
124. About 1,000 bird species are deemed at risk of extinction, and 88 of those are parrots.
125. Environmentalists are campaigning to save the white rhinoceros from extinction.
126. The biological positivists could only propose indeterminate detention or extinction for such categories of offender.
127. Many suspected that they were a dying race, slowly passing into extinction.
128. The park is participating in an international breeding programme with several other zoological collections, to help save the race from extinction.
129. Several species have come back from the brink of extinction.
130. Under emancipation, the Negro was thought to be doomed to extinction.
131. The aurochs are thought to have been hunted to extinction in Britain during the Bronze Age.
132. One possible case of paired impacts has been widely discussed in connection with the Cretaceous extinction event.
133. The Hodges doctrine, with its limited interpretation of federal power,(http://sentencedict.com/extinction.html) seemed well on the way to extinction.
134. Whales, too, were hunted to near extinction before the moratorium-of 1986.
135. The exact location is being kept secret to avoid poaching, which almost drove the giant clam to extinction 20 years ago.
136. Since there is a limited scope for polished versification of good sense and elegant learning, poetry declines towards extinction.
137. The end of the Triassic was marked by what is probably the third largest extinction event since the Cambrian.
138. Big species such as tuna and cod are disappearing, fished to virtual extinction in many places.
139. In some areas the vulture has vanished, with extinction possibly five years away.
140. It was a world which howled with car chases and teetered between excitement and extinction.
141. And these prized woods come from special trees, many of them threatened with extinction.
142. The virtual extinction of the dragon sister tutor should also help to allay your fears.
143. This illness now, huddling in the deck chair, was an extinction.
144. It's thought that a comet colliding with the earth may have caused the mass extinction of the dinosaurs.
145. The cause of dinosaur extinction is still unascertainable today.
146. Crucifixion thought - form is akin to extinction.
147. Study on relationship between extinction coefficient and mass concentration.
148. And then the apparent extinction coefficient can be calculated.
149. Pleistocene glaciation caused the extinction of many species.
150. Orang are currently on the verge of extinction wildly.
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.