- spectra, spectrums
- أَطْياف \ spectra, spectrums. \ See Also طيف (طَيْف)
Arabic-English glossary. 2015.
spectra, spectrums
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spectrum — [[t]spe̱ktrəm[/t]] spectra, spectrums (plural) 1) N SING: the N The spectrum is the range of different colours which is produced when light passes through a glass prism or through a drop of water. A rainbow shows the colours in the spectrum. 2) N … English dictionary
Spectralanalyse — Spectralanalyse, die chemische Untersuchung von Körpern durch prismatische Zerlegung des durch sie gefärbten Lichtes u. Beobachtung des dadurch gebildeten Spectrums. Wollaston beobachtete zuerst 1802, daß das Spectrum des Sonnenlichtes nicht ein… … Pierer's Universal-Lexikon
Farben — (Phys.), verschiedene Arten des Lichtes, welche sich nach der gegenwärtig allgemein angenommenen Undulationstheorie dadurch unterscheiden, daß die Athertheilchen, deren Vibrationen den Eindruck des Lichts überhaupt auf unser Auge hervorbringen,… … Pierer's Universal-Lexikon
Stellar classification — In astronomy, stellar classification is a classification of stars based on their spectral characteristics. The spectral class of a star is a designated class of a star describing the ionization of its chromosphere, what atomic excitations are… … Wikipedia
spectrum — /spek treuhm/, n., pl. spectra / treuh/, spectrums. 1. Physics. a. 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… … Universalium
spectrum — noun (plural spectra or spectrums) Etymology: New Latin, from Latin, appearance more at specter Date: 1671 1. a. a continuum of color formed when a beam of white light is dispersed (as by passage through a prism) so that its component wavelengths … New Collegiate Dictionary
Spectrum — A spectrum (plural spectra or spectrums [ [http://dictionary.reference.com/browse/spectrum Dictionary.com] . The American Heritage Dictionary of the English Language , Fourth Edition. Houghton Mifflin Company, 2004. (accessed: January 25, 2008).] … Wikipedia
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Aquarium lighting — describes any type of light that is used to illuminate an aquarium tank or in some instances, such as with reef aquariums, support the life contained within. FreshwaterFreshwater aquarium lighting often comes in two forms; one is a screw in style … Wikipedia
