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单词 spontaneous
释义
spontaneous
adjective
uk
/spɒnˈteɪ.ni.əs/us
/spɑːnˈteɪ.ni.əs/

spontaneousadjective(NOT PLANNED)

happeningor done in anatural, oftensuddenway, without anyplanningor without beingforced:
自发的；非筹划安排的；非勉强的
Hisjokesseemedspontaneous, but were infactcarefullypreparedbeforehand.他讲的笑话似乎是即兴的，但实际上是事先精心准备好的。
approvingShe's such a spontaneous,livelywoman.她是个为人率直、充满活力的女子。
More examples
  • I amcertainboth thesestatementswere spontaneous andgenuine.
  • Theaudiencebrokeinto spontaneousapplause.
  • Whathappenedwas not a spontaneousoutburstofviolence.
  • This was a spontaneousoutpouringofemotion.
  • We had noplansto do it - it was a spontaneous thing.
SMART Vocabulary: related words and phrases
Not expected or planned
  • abruptly
  • abruptness
  • ad hoc
  • ad hocism
  • ad hockery
  • extemporize
  • hoof
  • inconceivably
  • innocent
  • innocently
  • instinctive
  • instinctively
  • sine die
  • spirit
  • spontaneity
  • spontaneously
  • steepness
  • unannounced
  • unwitting
  • unwittingly
See more results »

spontaneousadjective(NO OUTSIDE CAUSE)

biology,medicalspecialized
happening,especiallyin alivingthing, without beingcausedby somethingoutside, or without the organism'scontrol:
Since spontaneousremissionsarecommonin rheumatoidarthritis, it isimpossibletoattributethem to anyparticulartherapy.
Spontaneousmaturationis whenmeiosiscontinueswithouthormonalstimulation.
More examples
  • It isestimatedthat spontaneoustendonrupturesoccurin about one in 100,000people.
  • Although about 15percentofcasesareinherited, thevastmajorityappearto be spontaneousgeneticmutations.
  • Thebacteriumiscapableof spontaneousmovement.
  • Thedeliverywas spontaneous,ratherthan aninducedorCaesareanbirth.
SMART Vocabulary: related words and phrases
Animal & plant biology - general words
  • abiotic
  • anatomical
  • anatomically correct
  • anti-Darwinian
  • anti-Darwinism
  • biodiversity
  • botany
  • Darwinism
  • entomological
  • entomologist
  • eukaryote
  • fight-or-flight
  • morphology
  • poisonous
  • pseudopod
  • recolonization
  • recolonize
  • regeneration
  • regenerative
  • zoology
See more results »

Related words

spontaneity
spontaneously
(Definition ofspontaneousfrom theCambridge Advanced Learner's Dictionary & Thesaurus© Cambridge University Press)
spontaneous
adjective
uk
/spɒnˈteɪ.ni.əs/us
/spɑːnˈteɪ.ni.əs/
happeningor done in anatural, oftensuddenway, without anyplanningor without beingforced
自发的；非筹划安排的；非勉强的
Hisjokesseemedspontaneous, but were infactcarefullypreparedbeforehand.他讲的笑话似乎是即兴的，但实际上是事先精心准备好的。
approvingShe's such a spontaneous,livelywoman.她是个为人率直、充满活力的女子。
More examples
  • I amcertainboth thesestatementswere spontaneous andgenuine.
  • Theaudiencebrokeinto spontaneousapplause.
  • Whathappenedwas not a spontaneousoutburstofviolence.
  • This was a spontaneousoutpouringofemotion.
  • We had noplansto do it - it was a spontaneous thing.

spontaneous| American Dictionary

spontaneous
adjective
us
/spɑnˈteɪ·ni·əs/
happeningnaturally, withoutplanningorencouragement:
a spontaneousperformance
spontaneousaffection

spontaneously

adverbus
/spɑnˈteɪ·ni·əs·li/
Thechildrenspontaneously gave ushugsandkisses.
(Definition ofspontaneousfrom theCambridge Academic Content Dictionary© Cambridge University Press)

Examplesofspontaneous

spontaneous
The excited atom interacts with the vacuum fluctuations which cause thespontaneousemission of radiation.
From theCambridge English Corpus
The appearance ofspontaneouserrors depends on noise, but also on the relative confusability of the targets.
From theCambridge English Corpus
She only produced 221spontaneousutterances across the three contexts used to elicit language samples, during which she produced the verbs forget and know spontaneously.
From theCambridge English Corpus
Many of thespontaneousproductions, however, were as single word utterances.
From theCambridge English Corpus
All three children were fully able to understand both languages at ageappropriate levels and could producespontaneousutterances in both languages before recording commenced.
From theCambridge English Corpus
All the other forms without any specification were produced in what apparently werespontaneousutterances.
From theCambridge English Corpus
The distinctspontaneousactivities of different bipolar cell types might provide a cue for the activity-dependent segregation of multiple parallel visual pathways.
From theCambridge English Corpus
Paradoxically, for all the precision of its organisation, the piece gives the impression of being free andspontaneous, almost improvisatory.
From theCambridge English Corpus
The final counts for the main rating task were 12 words, 10 sentences, 1 read paragraph, and 1spontaneousparagraph.
From theCambridge English Corpus
Spontaneousinteraction and elicited production are clearly separated.
From theCambridge English Corpus
In contrast, inspontaneousspeech, some of the children's third singular -s use reflected commentary on a present action.
From theCambridge English Corpus
In addition, nine were for thespontaneousspeech sample, while two were for the scientific passage, and one was for the dramatic passage.
From theCambridge English Corpus
The children in this study performed more poorly on elicitation thanspontaneouslanguage tasks.
From theCambridge English Corpus
This data does not distinguish betweenspontaneousversus assisted reproduction.
From theCambridge English Corpus
Neonatal outcome ofspontaneousand assisted twin pregnancies.
From theCambridge English Corpus
These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors.
#https://dictionary.cambridge.org//dictionary/english/spontaneous##
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更新时间：2024/12/28 1:02:53