Associations to the word «Spectral»
SPECTRAL, adjective. Having the appearance of a spectre; ghostly.
SPECTRAL, adjective. Of, or pertaining to, spectres.
SPECTRAL, adjective. Of, or pertaining to, spectra.
SPECTRAL BAT, noun. Vampyrum spectrum, the largest carnivorous bat.
SPECTRAL CLASS, noun. (star) A classification of stars depending on their spectra and luminosity; usually one of O, B, A, F, G, K, M.
SPECTRAL LINE, noun. (physics) a dark or bright line in an otherwise continuous spectrum caused by the absorption or emission of light, at a single wavelength, by the movement of electrons between energy levels of an atom or molecule
SPECTRAL LINES, noun. Plural of spectral line
SPECTRAL THEOREM, noun. (mathematics) a theorem providing conditions under which an operator or matrix can be diagonalized
SPECTRAL TYPE, noun. (astronomy) an indication of the physical and chemical characteristics of a star based on the spectrum of light that it emits
SPECTRAL, adjective. Of or relating to a spectrum; "spectral colors"; "spectral analysis".
SPECTRAL, adjective. Resembling or characteristic of a phantom; "a ghostly face at the window"; "a phantasmal presence in the room"; "spectral emanations"; "spiritual tappings at a seance".
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