Look up: spectrum

1. Spectrum
   ZX Spectrum
   Found on http://foldoc.org/Spectrum
   
   
2. Spectrum
   Display of component wavelengths (colours) of electromagnetic radiation.
   Found on http://home.nas.net/~dbc/cic_hamilton/di
   
   
3. spectrum
   The distribution of wavelengths and frequencies.
   Found on http://www.solarviews.com/eng/terms.htm
   
   
4. spectrum
   A plot of the intensity of light at different frequencies. Or the distribution of wavelengths and frequencies.
   Found on http://skyview.gsfc.nasa.gov/help/dictio
   
   
5. Spectrum
   A range of frequencies or wavelengths.
   Found on http://www.encyclo.co.uk/visitor-contrib
   
   
6. Spectrum
   Electromagnetic radiation arranged in order of wavelength. A rainbow is a natural spectrum of visible light from the Sun. Spectra are often punctuated with emission or absorption lines, which can be examined to reveal the composition and motion of the radiating source.
   Found on http://hesperia.gsfc.nasa.gov/sftheory/g
   
   
7. Spectrum
   In electromagnetics, the spectrum of a signal refers to the description of a signal's amplitudeversus its frequency components. In optics, spectrum refers to the various light frequencies composing the white light which can be seen as rainbow colours, when separated.
   Found on http://www.zoo.co.uk/~z0001325/Glossary.
   
   
8. spectrum
   [n] - an ordered array of the components of an emission or wave 2. [n] - broad range of related values or qualities or ideas or activities
   Found on http://www.webdictionary.co.uk/definitio
   
   
9. spectrum
   In radio, the total bandwidth available for communication. See spectrum allocation.
   Found on http://www.encyclo.co.uk/visitor-contrib
   
   
10. Spectrum
    (Plural: spectra) Usually refers to the 'rainbow' of colours seen by the human eye, Violet, Indigo, Blue, Green, Yellow, Orange, Red (in order of increasing wavelength). It is important to remember that this visible spectrum is only a tiny part of the full electromagnetic spectrum
    Found on http://www.users.zetnet.co.uk/computing/
    
    
11. Spectrum
    The range of frequencies or partials of an audio signal.
    Found on http://www.traditionalmusic.co.uk/music%
    
    
12. Spectrum
    Shortened term for the electromagnetic or radio frequency spectrum, portions of which have been set allocated by international agreement for specific classes of application, including radio, broadcast television, mobile TV, etc. Use of the radio frequency spectrum is regulated by national government...
    Found on http://www.agbnielsen.net/glossary/gloss
    
    
13. Spectrum
    A spectrum is a definition of the magnitude of the frequency components that constitute a quantity. The spectrum may be either a line spectrum or a continuous spectrum.There are three kinds of spectra that interest astronomers.Continuous SpectraThe surface of a star is heated to such an extent that ...
    Found on http://www.diracdelta.co.uk/science/sour
    
    
14. Spectrum
    Display of component wavelengths (colours) of electromagnetic radiation.
    Found on http://www.allchemicals.info/index/actio
    
    
15. spectrum
    1. A sequence of colors produced by passing light through a prism or diffraction grating. 2. A range of wavelengths of electromagnetic radiation. 3. A plot that shows how some intensity-related property of a beam of radiation or particles depends on another property that is related to dispersal of ...
    Found on http://antoine.frostburg.edu/chem/senese
    
    
16. Spectrum
    (1) A range of wavelengths (as in, 'the visible region of the electromagnetic spectrum'). (2) The variation of some function over a range of wavelengths. Examples of such functions might be power or number of photons passing through an area per unit time, or percentage of light reflected or absorbed by an object or substance.
    Found on http://www.nhm.ac.uk/hosted_sites/pe/200
    
    
17. spectrum
    a term which is applied by physical analogy (a) to the graphical representation of the spectral function; (b) to the graphical representation of the spectral density; (c) to the spectral function itself; (d) to the spectral density function itself Category: Statistics • a graphic represe...
    Found on http://www.mijnwoordenboek.nl/definition
    
    
18. Spectrum
    Spec'trum noun ; plural Spectra . [ Latin See Specter .] 1. An apparition; a specter. [ Obsolete] 2. (Opt.) (a) The several colored and other rays of which light is composed, separated by the refracti...
    Found on http://www.encyclo.co.uk/webster/S/158
    
    
19. spectrum
    A charted band of wavelengths of electromagnetic vibrations obtained by refraction and diffraction. ... By extension, a measurable range of activity, such as the range of bacteria affected by an antibiotic (antibacterial spectrum) or the complete range of manifestations of a disease. ... (18 Nov 1997) ...
    Found on http://www.mondofacto.com/facts/dictiona
    
    
20. spectrum
    noun broad range of related values or qualities or ideas or activities
    Found on http://wordnetweb.princeton.edu/perl/web
    
    
21. spectrum
    noun an ordered array of the components of an emission or wave
    Found on http://wordnetweb.princeton.edu/perl/web
    
    
22. spectrum
    Summarizes the periodicity properties of a time series or time series sample x_t. Often represented in a graph with frequency, or period, (often denoted little omega) on the horizontal axis, and S_x (omega), which is defined below, on the vertical axis. S_x is zero for frequencies th...
    Found on http://www.econterms.com/glossary.cgi?qu
    
    
23. spectrum
    (spek´trәm) the series of images (bands of color, for example) that result from the refraction of electromagnetic radiation (such as light or x-rays) so that they are arranged according to frequency or wavelength. range of activity, often used of antibiotics. range of manifestations, a...
    Found on http://www.encyclo.co.uk/local/21001
    
    
24. Spectrum
    • (n.) The several colored and other rays of which light is composed, separated by the refraction of a prism or other means, and observed or studied either as spread out on a screen, by direct vision, by photography, or otherwise. See Illust. of Light, and Spectroscope. • (n.) An apparitio...
    Found on http://thinkexist.com/dictionary/meaning
    
    
25. spectrum
    in optics, the arrangement according to wavelength of visible, ultraviolet, and infrared light. An instrument designed for visual observation of ... [13 related articles]
    Found on http://www.britannica.com/eb/a-z/s/137