Word · Frequency #7889
Fully loadedextinction
灭绝；消失；熄灭
the state of no longer existing or being active; being extinguished
- 1.
The action of making or becoming extinct; annihilation.
使灭绝或变得灭绝的行为；消灭。
- 2.
no longer active; extinguished
不再活跃；熄灭的
- 3.
The absorption or scattering of electromagnetic radiation emitted by astronomical objects by intervening dust and gas before it reaches the observer.
天体发出的电磁辐射被尘埃和气体吸收或散射,未到达观察者的现象。
- 4.
no longer in existence
不再存在
- 5.
The inability to perceive multiple stimuli simultaneously.
无法同时感知多个刺激。
- 6.
the reduction of the intensity of radiation as a consequence of absorption and radiation
由于吸收和辐射导致辐射强度的减弱
- 7.
The fading of a conditioned response over time if it is not reinforced.
条件反射在未被强化的情况下随时间消退。
使灭绝或变得灭绝的行为；消灭。；不再活跃；熄灭的；天体发出的电磁辐射被尘埃和气体吸收或散射,未到达观察者的现象。；不再存在；无法同时感知多个刺激。
In use
Many scientists believe that the extinction of the dinosaurs was caused by an asteroid impact.
Efforts are being made to prevent the extinction of the local dialect.
The extinction of that species is a direct result of deforestation.
the extinction of the volcano
the extinction of a species
be threatened with extinction
Many species are threatened with extinction due to habitat loss.
许多物种因栖息地丧失而面临灭绝的威胁。
face extinction
Connections
Collocations
- mass extinction
- 大规模灭绝
- The Permian-Triassic mass extinction wiped out 90% of marine species.二叠纪-三叠纪的大规模灭绝消灭了90%的海洋物种。
- on the brink of extinction
- 濒临灭绝
- Many species are now on the brink of extinction due to habitat loss.由于栖息地丧失，许多物种现在濒临灭绝。
- face extinction
- 面临灭绝
- Without conservation efforts, the tigers face extinction in the wild.如果没有保护措施，老虎在野外将面临灭绝。
- threaten extinction
- 威胁灭绝
- Climate change threatens extinction for many Arctic animals.气候变化威胁着许多北极动物的灭绝。
- species extinction
- 物种灭绝
- Human activity is accelerating species extinction at an alarming rate.人类活动正在以惊人的速度加速物种灭绝。
Learner notes
Memory Tip
灭绝（extinction）如同火焰熄灭（extinguish），物种从此消失。
Context & Register
中性。常见于生物学（物种灭绝）、生态学（濒危物种）、物理学（消光）及日常语境（如某种习俗的消失）。
Grammar Note
通常不可数，但可数形式extinctions表示多种灭绝事件
Pronunciation & Spelling
All these words share the spelling ending '-tion' pronounced /ʃən/. The stressed vowels differ: /æ/, /ɪ/, /e/, /eɪ/, /æ/, /ɛ/ respectively. They do not rhyme with 'extinction' due to different stressed syllables, but share the unstressed '-tion' suffix.
Learn the forms together
页面下方列出了常见词形变化。学习时注意它们在句子中的语法位置。
Dictionary facts from DICTIONARY_API_DEV, ECDICT, WIKTIONARY.