- an optical device for producing and observing a spectrum of light or radiation from any source, consisting essentially of a slit through which the radiation passes, a collimating lens, and an Amici prism.
Origin of spectroscope
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Examples from the Web for spectroscopically
This was the first new star which was spectroscopically examined.The Story of the Heavens
Robert Stawell Ball
The linear rate of the planet's equatorial rotation was spectroscopically determined by Bélopolsky and Deslandres in 1895.A Popular History of Astronomy During the Nineteenth Century
Agnes M. (Agnes Mary) Clerke
Each sample of blood is diluted in the same proportion and spectroscopically examined in the manner detailed at p. 58.
They may be picked up on a clean platinum wire and heated to redness in a Bunsen flame, and spectroscopically examined.
He employed in his discussion the radial velocities of 280 stars, spectroscopically Astrophysics.
- any of a number of instruments for dispersing electromagnetic radiation and thus forming or recording a spectrumSee also spectrometer
C19: from spectro- + -scope; from French, or on the model of German Spektroskop
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Word Origin and History for spectroscopically
Online Etymology Dictionary, © 2010 Douglas Harper
- An instrument for producing and observing spectra.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
- Any of various instruments used to analyze the component parts of a sample by separating its parts into a spectrum.♦ In a light spectroscope, light is focused into a thin beam of parallel rays by a lens, and then passed through a prism or diffraction grating that separates the light into a frequency spectrum. The intensity of light at different frequencies in the spectrum can be analyzed to determine certain properties of the source of the light, such as its chemical composition or how quickly it is moving.♦ In a mass spectroscope, sample ions are beamed through an electric or magnetic field that deflects the ions; the amount of deflection depends on the ratio of their mass to their electric charge. The ion beam is thus split into separate bands; the collection of bands is called the mass spectrum of the sample, and can be analyzed to determine the distribution of ions in the sample. Spectroscopes are also called spectrographs.
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