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spectra Definition

spec·tra (spektrə)

noun

spectrum

spectra Usage Examples

Preposition: of

  • molecule: Infrared spectra of the molecule CH 4 - one of at least ten new molecules detected by ISO.
  • galaxy: He showed, from spectra of the galaxies, that there was an increase in the velocity of recession with distance.

Converse of object

  • disperse: Both laser excitation spectra and dispersed fluorescence spectra can be obtained with this arrangement.
  • simulate: Here we use Monte Carlo method to simulate the spectra that may have been measured by the Compton suppression spectrometer.
  • extract: Comment This contains the width of the mask used to extract the grating spectra from the LE image.
  • obtain: Clearly obtaining spectra for the flanking field 15 m sources is a high priority.
  • interpret: There is also a list of commonly lost fragments, helpful for interpreting spectra.
  • calculate: Software tools are available for calculating diffraction spectra for specified crystal structures.

Adjective modifier

  • vibrational: The associated vibrational spectra provide an opportunity to demonstrate the nature of the transition.
  • infrared: Infrared spectra of the molecule CH 4 - one of at least ten new molecules detected by ISO.
  • ir: Some years back, there began experiments with different IR spectra used to kill harmful microorganisms.
  • infra-red: Note: This page follows directly on from the introductory page on infra-red spectra.
  • one-dimensional: It includes entries for directional wave spectra, one-dimensional wave spectra and short term statistics.
  • stellar: However, the pattern of lines did not match any of the lines seen in thousands of stellar spectra gathered over a hundred years.

Noun used with modifier

  • fluorescence: The high signal to noise ratio in alumina fluorescence spectra is not achieved in the true Raman spectra developed by other types of ceramic.
  • absorption: The absorption spectra of pure samples of some of these pigments are shown in the graph on the left.
  • reflectance: An average of ten reflectance spectra was collected for each target surface.
  • high-resolution: The telescopes would combine infrared light to produce high-resolution spectra of the atmospheres of distant planets.
  • gamma-ray: Nature of problem: The program automatically analyzes multi-element gamma-ray spectra obtained with high resolution detectors.
  • photoelectron: Recent experimental studies of photoelectron spectra provide support for theories.