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单词 circadian
释义
circadian
adj
biologyspecialized
uk
/sɜːˈkeɪ.di.ən/us
/sɝːˈkeɪ.di.ən/
used todescribetheprocessesinanimalsandplantsthathappennaturallyduring a24-hourperiod:
（动植物的）昼夜的，约一日的，约24小时的（节律，周期）
Our circadianclockmakes itdifficulttosleepduring theday.昼夜生理时钟让我们很难在白天睡觉。
SMART Vocabulary: related words and phrases
Days & times of day
  • afternoon
  • afternoons
  • am
  • arvo
  • at the crack of dawnidiom
  • high noon
  • hour
  • in broad daylightidiom
  • in the dead of night/winteridiom
  • last orders
  • night
  • nocturnally
  • noon
  • noontime
  • o'clock
  • office hours
  • the witching hour
  • twilit
  • workday
  • working day
See more results »
(Definition ofcircadianfrom theCambridge Advanced Learner's Dictionary & Thesaurus© Cambridge University Press)

Examplesofcircadian

circadian
Such parallel findings point to an intimate relationship between the neurotransmitter systems targeted by drugs and thecircadianrhythms targeted by chronotherapeutics.
From theCambridge English Corpus
The diurnal rhythm of crying becomes progressively more distinct, reflecting the increasing strength of thecircadiandrive.
From theCambridge English Corpus
Allcircadianrhythms which have been studied ultimately adapt, but this may take weeks.
From theCambridge English Corpus
If their eyes are primarilycircadianin function, have pathways concerned with image formation, color, and motion been discarded?
From theCambridge English Corpus
Ovulation and oviposition in birds are the best known and best characterisedcircadianprocesses controlled by light/dark signals.
From theCambridge English Corpus
Cloning and characterization of a mammalian melatonin receptor that mediates reproductive andcircadianresponses.
From theCambridge English Corpus
Intrinsic light responses of retinal ganglion cells projecting to thecircadiansystem.
From theCambridge English Corpus
Circadianclocks located in the photoreceptors and retinal neurons regulate melatonin synthesis in the eye.
From theCambridge English Corpus
Phototransduction by retinal ganglion cells that set thecircadianclock.
From theCambridge English Corpus
Effects of exogenous melatonin oncircadiandisc shedding in the albino rat retina.
From theCambridge English Corpus
However, evidence forcircadiancontrol of dopamine synthesis and release is still controversial.
From theCambridge English Corpus
Such a mechanism provides an alternative to one involvingcircadiancontrol of retinal responses.
From theCambridge English Corpus
Rather, light acts indirectly by modulating the output of thecircadianclock.
From theCambridge English Corpus
Limulus photoreceptors do not contain an endogenouscircadianoscillator, but rely upon efferent outflow from a central clock forcircadiantiming.
From theCambridge English Corpus
Little is known about howcircadianclocks and photoreceptors communicate to regulate shedding.
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/circadian##
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更新时间：2024/12/28 6:47:39