WebSPECTRAL meaning: 1 : of, relating to, or suggesting a ghost ghostly; 2 : of, relating to, or made by a spectrum

Webspectrum: [noun] a continuum of color formed when a beam of white light is dispersed (as by passage through a prism) so that its component wavelengths are arranged in order. any of various continua that resemble a color spectrum in consisting of an ordered arrangement by a particular characteristic (such as frequency or energy): such as. ...

Webnoun : the type of a star described primarily according to its surface temperature by means of alphabetic categories (such as O, B, A, F, G, K, and M), decimal subdivisions of the categories, and sometimes symbols indicating special characteristics (such as e for stars with bright emission lines, d for dwarfs, and g for giants)

WebMar 20, 2018 · spectral line noun : one of a series of linear images of the narrow slit of a spectrograph or similar instrument corresponding to a component of the spectrum of the radiation emitted by a particular source More from Merriam-Webster on spectral line Britannica.com: Encyclopedia article about spectral line Love words? Need even more …

WebEnergy spectral density describes how the energy of a signal or a time series is distributed with frequency. Here, the term energy is used in the generalized sense of signal processing; that is, the energy of a signal () is: | | . The energy spectral density is most suitable for transients—that is, pulse-like signals—having a finite total energy.

WebA spectral line is a weaker or stronger region in an otherwise uniform and continuous spectrum, resulting from emission or absorption of light in a narrow frequency range, compared with the nearby frequencies. Spectral lines …

WebAug 21, 2019 · A measurement of energy commonly used in remote sensing of the Earth is reflected energy (e.g., visible light, near-infrared, etc.) coming from land and water surfaces. The amount of energy reflected from these surfaces is usually expressed as a percentage of the amount of energy striking the objects.

WebMultispectral imaging captures image data within specific wavelength ranges across the electromagnetic spectrum. The wavelengths may be separated by filters or detected with the use of instruments that are sensitive to particular wavelengths, including light from frequencies beyond the visible light range, i.e. infrared and ultra-violet.

WebFind 11 ways to say SPECTRAL, along with antonyms, related words, and example sentences at Thesaurus.com, the world's most trusted free thesaurus.

WebSynonyms for SPECTRUM: range, scale, gamut, scope, stretch, diapason, width, spread, pitch, amplitude

WebIt is a directional quantity: the radiance of a surface depends on the direction from which it is being observed. The related quantity spectral radiance is the radiance of a surface per unit frequency or wavelength, depending on whether the spectrum is taken as a function of frequency or of wavelength.

Web1. a visible incorporeal spirit, esp. one of a terrifying nature; ghost; phantom; apparition.