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单词 luminescence
释义

Definition of luminescence in English:

luminescence

noun ˌluːmɪˈnɛs(ə)nsˌluməˈnɛsəns
mass noun
  • The emission of light by a substance that has not been heated, as in fluorescence and phosphorescence.

    honey fungus produces a ghostly greenish luminescence
    Example sentencesExamples
    • Not electrical, but green luminescence; a glowing paint that had been painted along every shelf and spare inch of wall or floor.
    • Pholasin alone can emit luminescence if exposed to superoxide.
    • Intriguingly, rhythmic luminescence in certain lines was affected by only a subset of the pacemaker mutations.
    • He studied seawater luminescence and ocean temperatures while charting the path of the Gulf Stream.
    • This might be explained by the pattern of brain generated neural bursts that initiate luminescence and this appears to be the case in P. lucicrescens.
    • This luminescence makes them interesting candidates for applications in biological test systems or as sensors.
    • This property also leads to the intense luminescence and electron transfer capability of porphyrins and many metalloporphyins.
    • The luminescence was quantified in live cells using bioluminescence imaging.
    • There are different types of luminescence.
    • A proportion of this energy appears in the form of light emitted by the crystal; this is optically stimulated luminescence.
    • The acceleration of the recombination rate and the strong stimulation of luminescence caused by the membrane potential are well known.
    • The luminescence in these cases may be excited by direct electron impact rather than with UV light.
    • In the nonsilenced plant, strong luminescence was detected from all parts of the section, while no luminescence was found in the control plant.
    • It seems clear that the photocyte has substantial local control of its luminescence and is not dependent on external oxygen in any simple way.
    • Streptococci emit light during log phase growth, and luminescence subsides as they enter stationary phase.
    • When a laser light source is used to stimulate the release of electrons, the process is called optically stimulated luminescence.
    • Chemiluminescence is a special case of luminescence in which the excitation source is a chemical reaction.
    • Most of the arthropods consist of an infill of sparry calcite with uniform luminescence.
    Synonyms
    light, shining, brightness, brilliance, luminosity, radiation, beams, rays, illumination, blaze, glow, luminousness, gleam, lustre, glitter, sparkle, flash, dazzle, shimmer, glare

Derivatives

  • luminescent

  • adjective luːmɪˈnɛs(ə)ntˌluməˈnɛs(ə)nt
    • Emitting light not caused by heat.

      the team is developing a transparent luminescent solar concentrator
      Example sentencesExamples
      • there's something calming about watching a luminescent jellyfish
      • The basis for this power is the development of stable and sensitive analysis devices and fluorescent and luminescent probes.
      • A person could place his hand in an x-ray beam before a luminescent screen and view his own bones through a hooded visor.
      • Fluorescence and phosphorescence are two similar luminescent phenomena.

Origin

Late 19th century: from Latin lumen, lumin- 'light' + -escence (denoting a state).

Rhymes

acquiescence, adolescence, arborescence, coalescence, convalescence, deliquescence, effervescence, essence, evanescence, excrescence, florescence, fluorescence, incandescence, iridescence, juvenescence, obsolescence, opalescence, phosphorescence, pubescence, putrescence, quiescence, quintessence
 
 

Definition of luminescence in US English:

luminescence

nounˌluməˈnɛsənsˌlo͞oməˈnesəns
  • The emission of light by a substance that has not been heated, as in fluorescence and phosphorescence.

    honey fungus produces a ghostly greenish luminescence
    Example sentencesExamples
    • This luminescence makes them interesting candidates for applications in biological test systems or as sensors.
    • A proportion of this energy appears in the form of light emitted by the crystal; this is optically stimulated luminescence.
    • Streptococci emit light during log phase growth, and luminescence subsides as they enter stationary phase.
    • He studied seawater luminescence and ocean temperatures while charting the path of the Gulf Stream.
    • Not electrical, but green luminescence; a glowing paint that had been painted along every shelf and spare inch of wall or floor.
    • This property also leads to the intense luminescence and electron transfer capability of porphyrins and many metalloporphyins.
    • The luminescence in these cases may be excited by direct electron impact rather than with UV light.
    • It seems clear that the photocyte has substantial local control of its luminescence and is not dependent on external oxygen in any simple way.
    • Pholasin alone can emit luminescence if exposed to superoxide.
    • The acceleration of the recombination rate and the strong stimulation of luminescence caused by the membrane potential are well known.
    • Most of the arthropods consist of an infill of sparry calcite with uniform luminescence.
    • The luminescence was quantified in live cells using bioluminescence imaging.
    • In the nonsilenced plant, strong luminescence was detected from all parts of the section, while no luminescence was found in the control plant.
    • Intriguingly, rhythmic luminescence in certain lines was affected by only a subset of the pacemaker mutations.
    • This might be explained by the pattern of brain generated neural bursts that initiate luminescence and this appears to be the case in P. lucicrescens.
    • Chemiluminescence is a special case of luminescence in which the excitation source is a chemical reaction.
    • When a laser light source is used to stimulate the release of electrons, the process is called optically stimulated luminescence.
    • There are different types of luminescence.
    Synonyms
    light, shining, brightness, brilliance, luminosity, radiation, beams, rays, illumination, blaze, glow, luminousness, gleam, lustre, glitter, sparkle, flash, dazzle, shimmer, glare

Origin

Late 19th century: from Latin lumen, lumin- ‘light’ + -escence (denoting a state).

 
 
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更新时间:2024/9/21 22:45:07