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词汇 evanescent
释义

Definition of evanescent in English:

evanescent

adjective iːvəˈnɛs(ə)ntɛvəˈnɛs(ə)ntˌɛvəˈnɛs(ə)nt
  • 1literary Soon passing out of sight, memory, or existence; quickly fading or disappearing.

    很快消失(或消散)的

    the evanescent Arctic summer
    Example sentencesExamples
    • It was evanescent, fading just as quickly as it had appeared, and translucent to begin with.
    • Just as the evanescent electric spark travels up the wire and disappears, we see how transitory our seemingly stable universe may prove to be.
    • This parallel love story clearly relays the obvious frustration that Noah felt due to his wife's evanescent memory and his tender love for her.
    • However, this sceptical triumph is evanescent, it vanishes when his attention turns to other facts.
    • Next to these markers, family and lived events can seem evanescent, fugitive, and unreal, because memories of them are neither ubiquitous nor collectively shared.
    Synonyms
    vanishing, fading, evaporating, melting away, disappearing, diminishing, dwindling, shrinking, fugitive
    rare fugacious
    ephemeral, fleeting, short-lived, short-term, passing, transitory, transient, fugitive, momentary, temporary, brief, here today and gone tomorrow
    rare fugacious
  • 2Physics
    Denoting a field or wave which extends into a region where it cannot propagate and whose amplitude therefore decreases with distance.

    〔物理〕(波)隐失的,倏逝的,衰逝的;(场)瞬逝的,迅速衰减的

    Example sentencesExamples
    • First, the evanescent field decays exponentially at the sensor surface.
    • Close to the sphere surface, the oligonucleotide interacts with the evanescent field of the WGM, which extends about a wavelength into the buffer solution.
    • I don't want to go into detail, but the phenomena can be explained by Maxwell's equation and evanescent waves.
    • The technique uses the unique polarizations of evanescent waves generated by total internal reflection to excite the dipole moment of individual fluorophores.
    • We performed laser induced fluorescence imaging by exciting the immobilized MBs with an evanescent wave field produced at the silica-water interface.

Derivatives

  • evanescence

  • noun iːvəˈnɛs(ə)nsɛvəˈnɛs(ə)nsˌɛvəˈnɛs(ə)ns
    • The home we knew has disappeared, and its evanescence only heightens our desire for it.
      Example sentencesExamples
      • Just as dreams do, memory makes me profoundly aware of the unreality, the evanescence of the world, a fleeting image in the moving water.
      • The gliding motion of the sails, their white flimsiness and quick transformations gave whatever formations they shaped and the places they represented a distinct air of insubstantiality and evanescence.
      • Their lives are thrown into a spin by their esteemed relative's presence, but this tale ends quietly in a little wisp of smoke, an exquisite reminder of the evanescence of things.
      • Our insistence on evanescence, consciousness and diaphanous impressionism distorts the book that forms in our minds, like the slight misimpression on the pottery wheel that tilts the eventual cup.
  • evanescently

  • adverb
    • They came to him evanescently, and left without leaving a trace in his memory - so brief and so quick.
      Example sentencesExamples
      • There was pathos in the evocatively dovetailed dialogues with the strings; left-hand chords emerged inconspicuously from tuttis, the melody poised evanescently above.
      • Experiments were performed in a liquid sample cell containing two silica spheres immersed in a buffer solution and evanescently coupled to the same single-mode, near-infrared optical fiber.
      • The evanescently excited fluorescence intensity was measured for a series of samples with increasing IgG concentration in solution adjacent to supported phospholipid bilayers containing Fc [gamma] RII.
      • The spheres are coupled evanescently to the optical fiber.

Origin

Early 18th century (in the sense 'almost imperceptible'): from Latin evanescent- 'disappearing', from the verb evanescere (see evanesce).

Rhymes

acquiescent, adolescent, albescent, Besant, coalescent, confessant, convalescent, crescent, depressant, effervescent, erubescent, excrescent, flavescent, fluorescent, immunosuppressant, incandescent, incessant, iridescent, juvenescent, lactescent, liquescent, luminescent, nigrescent, obsolescent, opalescent, pearlescent, phosphorescent, pubescent, putrescent, quiescent, suppressant, turgescent, virescent, viridescent

Definition of evanescent in US English:

evanescent

adjectiveˌevəˈnes(ə)ntˌɛvəˈnɛs(ə)nt
literary
  • 1Soon passing out of sight, memory, or existence; quickly fading or disappearing.

    很快消失(或消散)的

    a shimmering evanescent bubble

    闪闪发光但很快消失的气泡。

    Example sentencesExamples
    • It was evanescent, fading just as quickly as it had appeared, and translucent to begin with.
    • However, this sceptical triumph is evanescent, it vanishes when his attention turns to other facts.
    • Just as the evanescent electric spark travels up the wire and disappears, we see how transitory our seemingly stable universe may prove to be.
    • This parallel love story clearly relays the obvious frustration that Noah felt due to his wife's evanescent memory and his tender love for her.
    • Next to these markers, family and lived events can seem evanescent, fugitive, and unreal, because memories of them are neither ubiquitous nor collectively shared.
    Synonyms
    vanishing, fading, evaporating, melting away, disappearing, diminishing, dwindling, shrinking, fugitive
    ephemeral, fleeting, short-lived, short-term, passing, transitory, transient, fugitive, momentary, temporary, brief, here today and gone tomorrow
    1. 1.1Physics Denoting a field or wave that extends into a region where it cannot propagate and whose amplitude therefore decreases with distance.
      〔物理〕(波)隐失的,倏逝的,衰逝的;(场)瞬逝的,迅速衰减的
      Example sentencesExamples
      • The technique uses the unique polarizations of evanescent waves generated by total internal reflection to excite the dipole moment of individual fluorophores.
      • I don't want to go into detail, but the phenomena can be explained by Maxwell's equation and evanescent waves.
      • First, the evanescent field decays exponentially at the sensor surface.
      • Close to the sphere surface, the oligonucleotide interacts with the evanescent field of the WGM, which extends about a wavelength into the buffer solution.
      • We performed laser induced fluorescence imaging by exciting the immobilized MBs with an evanescent wave field produced at the silica-water interface.

Origin

Early 18th century (in the sense ‘almost imperceptible’): from Latin evanescent- ‘disappearing’, from the verb evanescere (see evanesce).

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