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单词 luminosity
释义
luminosity
noun
uk
/ˌluː.mɪˈnɒs.ə.tɪ/us
/ˌluː.məˈnɑː.sə.t̬i/
[UorS]
thestateofproducingorreflectingbrightlight; thestateofappearingtoshine:
发亮，放光
Thephotographerachievedthe luminosity in theimagethroughcarefulmanipulationin thedarkroom.摄影师通过在暗房中的精心操作，实现了图像中的发光效果。
Thelightwascrystalline, giving everything ashimmeringluminosity.光线晶莹剔透，使一切都闪闪发光。
[UorC]environment,physicsspecialized
thebrightnessof astar,comet, etc.:
（恒星、彗星等的）光度、亮度
Theobjectof theprojectis toinvestigatethemassand luminosity ofnearbystars.这个项目的目标是调查附近恒星的质量和亮度。
Thestarshave highsurfacetemperatures(50,000kelvinsand up) and luminosities (100,000sunsandgreater).这些恒星的表面温度很高（50,000开尔文或更高），亮度也很高（相当于100,000个太阳或更亮）。
[U]physicsspecialized
themeasurementof therateat which anobjectproducesradiation:
光度；亮度
TheX-rayluminosity from agalaxyclustercan be used tofinditscentreveryaccurately.星系团的X射线光度可以用来非常准确地找到其中心。
See
luminous
More examples
  • Theamountoflightenteringthebuildingiscontrolled,allowingmaximumbrightnessand luminosity.
  • Thesheerpeachlotiongivesskinawarmkissof luminosity , as though you'd just had afacial.
  • Cool andred, AU Micshineswith about a tenth the Sun's luminosity and has abouthalfitsmass.
  • Thesystemindependentlydetectsbrightnessand luminosity for thebestqualityphoto.
SMART Vocabulary: related words and phrases
Giving out light
  • afire
  • albedo
  • beam
  • bioluminescence
  • brighten
  • burnished
  • candlelit
  • flicker
  • glimmer
  • glitter
  • illuminate
  • non-glare
  • non-luminous
  • out-glitter
  • pearlescence
  • pearlescent
  • reflected ray
  • shine
  • spotlight
  • wink
See more results »

You can also find related words, phrases, and synonyms in the topics:

The qualities of light
Astronomy
Physics: radiation & radioactivity
(Definition ofluminosityfrom theCambridge Advanced Learner's Dictionary & Thesaurus© Cambridge University Press)

luminosity| American Dictionary

luminosity
noun[C]
us
/ˌlu·məˈnɑ·sɪ·t̬i/
earth science
thetotalamountofenergyproducedby astarin one second
(Definition ofluminosityfrom theCambridge Academic Content Dictionary© Cambridge University Press)

Examplesofluminosity

luminosity
Second, we used curved crystal spectrometers, which have the advantage of high spectral resolution and highluminosity.
From theCambridge English Corpus
This is also required to avoid the ablation plasma flow around the foil edges, which otherwise disturbs theluminosityrecord.
From theCambridge English Corpus
These changes are transmitted to the outer regions of a star, which results in a steady increase inluminosityand changes in effective temperature.
From theCambridge English Corpus
Measurements ofluminosityin affected individuals typically reveal a scotopic function at dim background levels.
From theCambridge English Corpus
A higherluminositycan obviously be preferential for the number of experimental events.
From theCambridge English Corpus
The stellar mass and metallicity, and the initial values ofluminosity, effective temperature, core temperature and core pressure were individually set.
From theCambridge English Corpus
Stellar distances and luminosities were calculated using the above data and procedures described in the text.
From theCambridge English Corpus
Theluminosityevolution of the main-sequence central star is deduced by polynomial fitting of stellar evolution models.
From theCambridge English Corpus
The model is based on the global carbon cycle mediated by life and driven by increasing stellarluminosityand plate tectonics.
From theCambridge English Corpus
The differences inluminosityare taken to be the result of different accretion rates within the disks.
From theCambridge English Corpus
Solarluminosityis given in column 4 relative to the present output.
From theCambridge English Corpus
The shockluminositysignals recorded in the two targets clearly show the relative shock transit time delay.
From theCambridge English Corpus
We call this property theluminosityof the flow.
From theCambridge English Corpus
Figure 3 shows a typical shockluminositysignal recorded using a polyethylene target, along with the fiducial signal.
From theCambridge English Corpus
Images were customized with respect to theluminosityof each observer.
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/luminosity##
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更新时间：2024/12/27 19:47:08