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单词 dichroic
释义

Definition of dichroic in English:

dichroic

adjective dʌɪˈkrəʊɪkdīˈkrōik

  • (of a crystal) showing different colours when viewed from different directions, or (more generally) having different absorption coefficients for light polarized in different directions.

    （晶体）呈不同色的，分色的；分光的

    Example sentencesExamples
    • One common laboratory technique - the use of circularly polarized light in circular dichroic spectroscopy - optically records changes in protein secondary structure to study the dynamics within the biological system.
    • Visual pigments, the molecules in photoreceptors that initiate the process of vision, are inherently dichroic, differentially absorbing light according to its axis of polarization.
    • The light reflected by this dichroic mirror, is split into two separate paths with a polarizing beam splitter.
    • Upon measuring the absorbance of a labeled peptide at a given angle of incidence, two different dichroic ratios were obtained.
    • The angle between the diglucosamine ring plane and the membrane plane was determined by dichroic measurements using polarized IR light with oriented multilayers of the endotoxins.

Derivatives

  • dichroism

    • noun ˈdʌɪkrəʊˌɪz(ə)mdaɪˈkroʊˌɪzəm
    • Circular dichroism in 10 mM phosphate was used to determine the secondary structure and thermal stability of tropomyosin model peptides.
      Example sentencesExamples
      • The analyses of circular dichroism and fluorescence spectroscopy suggest that the monomer is well folded, and that it has certain characteristic features when compared to its tetrameric counterpart.
      • This is important because according to the theory of site-directed dichroism at least three dichroic ratios have to be known to determine the main structural parameters of the helix.
      • Polarized optical spectroscopies, like linear dichroism and polarized fluorescence, are well-established techniques in biophysics.
      • This result is consistent with a recent investigation of K3 in the presence of large unilamellar vesicles of anionic phospholipids by circular dichroism spectroscopy in the solution state.

Origin

Mid 19th century: from Greek dikhroos (from di- 'twice' + khrōs 'colour') + -ic.

Definition of dichroic in US English:

dichroic

adjectivedīˈkrōik

  • (of a crystal) showing different colors when viewed from different directions, or (more generally) having different absorption coefficients for light polarized in different directions.

    （晶体）呈不同色的，分色的；分光的

    Example sentencesExamples
    • Upon measuring the absorbance of a labeled peptide at a given angle of incidence, two different dichroic ratios were obtained.
    • The light reflected by this dichroic mirror, is split into two separate paths with a polarizing beam splitter.
    • The angle between the diglucosamine ring plane and the membrane plane was determined by dichroic measurements using polarized IR light with oriented multilayers of the endotoxins.
    • One common laboratory technique - the use of circularly polarized light in circular dichroic spectroscopy - optically records changes in protein secondary structure to study the dynamics within the biological system.
    • Visual pigments, the molecules in photoreceptors that initiate the process of vision, are inherently dichroic, differentially absorbing light according to its axis of polarization.

Origin

Mid 19th century: from Greek dikhroos (from di- ‘twice’ + khrōs ‘color’) + -ic.
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更新时间：2025/7/5 0:14:08