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 no longer active; extinguished 3.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 no longer active; extinguished 3.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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91. Whatever caused the extinction, it is not soft skin that determined survival.
92. But 25 native species are endangered, seven to the verge of extinction.
93. Less clear is the question of whether mushrooms can be hunted to extinction.
94. Wolves, which are clean and beautiful, have been hunted almost to extinction because they are seen as dangerous.
95. This meant that they had now gained a tremendous advantage over the reptiles, even causing the extinction of many of them.
96. By contrast, a cruiser is utterly directed, as Schopenhauer might have put it, towards the extinction of his desire.
97. Over the period since 1945 as a whole, other beasts proved mammoths - of elephantine size but doomed to extinction.
98. Loss of beachfront habitat and predation by domestic cats and introduced red foxes pushed the least tern to the brink of extinction.
99. Many are working to save species from extinction, animals from cruelty, natural environment from destruction.
100. Bird's island haven A REMOTE Donegal island is proving a haven for a native bird threatened by extinction.
101. Several equally renowned eating places such as Drouant are also threatened with extinction. Sentencedict.com
102. But below the mirror images of arts and architecture lurks the threat of extinction - Venice is in Peril.
103. Cuvier tried to evade one disturbing implication of extinction by linking the phenomenon to his theory of catastrophic geological changes.
104. But it is not just this personality clash that is driving Solidarity-as-we-know-it to extinction.
105. There, for 20 years, she had watched helplessly as that country's wildlife was systematically hunted to extinction.
106. But weren't zoos supposed to be for studying animals, and saving species from extinction?
107. Fornication was inevitable; it was something of a relief that high unit labour costs had driven the boot man to extinction.
108. When this happens it can dramatically slash profits - and can even threaten a business with extinction.
109. Trade in the grey whale has been outlawed since 1949 because uncontrolled whaling had put it on the verge of extinction.
110. But germ lines can deteriorate and cause extinction of lineages.
111. Pen Pros: Except for personal letters, handwritten notes are withering into extinction.
112. The results are used to help the teacher to diagnose student deficiencies. extinction See also under learning: conditioned reflex.
113. Most of this trade is legal and involves species not threatened with extinction, although conservationists feel better controls are needed.
114. Secondly, they say there is no scientific evidence that whales are near extinction.
115. Ornithologists have been fighting to save the bird from extinction for the last 50 years.
116. It is not: extinction has happened millions of times before and is an exciting opportunity for science.
117. To Liberal party activists, however, it was the extinction of a lamp, the end of an era.
118. Even more probable than the extinction of humanity is a catastrophe that destroys our culture while leaving some humans still alive.
119. The oyster farming industry, already hit by recession, would face extinction should the proposals be implemented.
120. Darwinism showed that extinction was the result of physical weakness or unfitness for purpose.
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.