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[spek-tros-kuh-pee, spek-truh-skoh-pee] /spɛkˈtrɒs kə pi, ˈspɛk trəˌskoʊ pi/
the science that deals with the use of the spectroscope and with spectrum analysis.
the science and practice of using spectrometers and spectroscopes and of analysing spectra, the methods employed depending on the radiation being examined. The techniques are widely used in chemical analysis and in studies of the properties of atoms, molecules, ions, etc

spectroscopy spec·tros·co·py (spěk-trŏs’kə-pē)
The study of spectra, especially experimental observation of optical spectra.
spec·tros’co·pist n.
The analysis of spectra, especially light or mass spectra, to determine properties of their source. ◇ In light or optical spectroscopy, the spectrum of a light source is analyzed through a spectroscope to determine atomic composition of a substance. In astronomy, phenomena such as red shift can also be analyzed. ◇ In mass spectroscopy, a spectroscope is used to determine the composition of ions or charged molecules in a sample. Spectroscopy is also called spectrography. See also atomic spectrum, spectroscope.

spectroscopy [(spek-tros-kuh-pee)]

The branch of science devoted to discovering the chemical composition of materials by looking at the light (and other kinds of electromagnetic radiation) they emit. Scientists use spectroscopy to determine the nature of distant stars and galaxies as well as to identify and monitor the production of products in factories.


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  • Spectrum

    noun, plural spectra [spek-truh] /ˈspɛk trə/ (Show IPA), spectrums. 1. Physics. an array of entities, as light waves or particles, ordered in accordance with the magnitudes of a common physical property, as wavelength or mass: often the band of colors produced when sunlight is passed through a prism, comprising red, orange, yellow, green, blue, indigo, […]

  • Spectrum analyser

    noun 1. an instrument that splits an input waveform into its frequency components, which are then displayed

  • Spectrum-analysis

    noun 1. the determination of the constitution or condition of bodies and substances by means of the spectra they produce. 2. the ascertaining of the number and character of the constituents combining to produce a sound spectrogram. spectrum analysis noun 1. the analysis of a spectrum to determine the properties of its source, such as […]

  • Spectrum-disorder

    noun, Pathology. 1. any of a group of disorders each having symptoms that occur on a continuum and certain features that are shared along its spectrum but that manifest in markedly different forms and degrees. See also autism spectrum disorder.

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