| 单词 | extinction |
| 释义 | extinction (once / 1230 pages) 1n 2n 3n Extinction is when all members of a particular group die. Most often, we use it to discuss animal species. Many fear that the tiger is headed for extinction because of development and hunting. People are still trying to figure out what caused the extinction of the dinosaurs: many think it was because of an asteroid. When people cut down rain forests, it can lead to the extinction of many species. Although extinction can be natural or unintended, the word can also mean forced, planned killing. Many people refer to the Holocaust as Hitler's attempt to bring about the extinction of the Jews. Languages also face extinction when no one speaks them anymore. WORD FAMILYextinction: extinctions USAGE EXAMPLESThey presented a somber vision of the turtles’ potential extinction and discussed ways to prevent that. New York Times(Jan 02, 2017) Some of the species captured by the Photo Ark are on the verge of extinction. BBC(Jan 01, 2017) But for an international group of scientists determined to save the species from near-certain extinction, it represents a final hope. Los Angeles Times(Dec 30, 2016) 1 1n no longer in existence the extinction of a species Syn|Hyper defunctness death the absence of life or state of being dead 2n complete annihilation they think a meteor cause the extinction of the dinosaurs Syn|Hyper extermination annihilation, disintegration total destruction 3n the act of extinguishing; causing to stop burning the extinction of the lights Syn|Hyper extinguishing, quenching conclusion, ending, termination the act of ending something 4n no longer active; extinguished 2the extinction of the volcano Hyper inaction, inactiveness, inactivity the state of being inactive n a conditioning process in which the reinforcer is removed and a conditioned response becomes independent of the conditioned stimulus 3Syn|Hyper experimental extinction conditioning a learning process in which an organism's behavior becomes dependent on the occurrence of a stimulus in its environment n the reduction of the intensity of radiation as a consequence of absorption and radiation Hyper action, activity, natural action, natural process a process existing in or produced by nature (rather than by the intent of human beings) |
| 随便看 |
英语词典包含147318条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。