Category: S

  • Spectrum emission

    In spectroscopy and fluorometry, the range of wavelengths emitted by a substance.  

  • Spectrum bias

    Variation in the performance of a diagnostic test due to its application to people of differing ages, genders, nationalities, or specific disease manifestations. A test’s sensitivity and specificity may increase or decrease, depending on the population to which it is applied.  

  • Spectroscopy

    The branch of physical science that treats the phenomena observed with the spectroscope, or those principles on which the action is based.  

  • Spectropolarimeter

    A device for measuring the rotation of light rays of a specific wavelength by passage through a translucent solid.  

  • Spectrophotometry

    Ail estimation of coloring matter in a solution by use of the spectroscope or spectrophotometer.  

  • Spectrophotometric analysis

    Determination of materials in a compound by measuring the amount of light they absorb in the infrared, visible, or ultraviolet region of the spectrum.  

  • Spectrometry

    The process of determining the wavelength of light rays by use of a spectrometer. The discipline involving the utilization of a spectrometer.  

  • Spectrofluorometer

    An instrument that measures the degree and frequencies of fluorescence of compounds in chemical reactions or in solution.  

  • Spectrocolorimeter

    A device for detecting color blindness by isolating a single spectral color.  

  • Spectrin

    An intracellular, calcium-dependent contractile protein that helps maintain the structure and shape of cells, especially red blood cells.