Spectrum: nf (word from the Latin spectrum).
The word “spectrum” has several meanings:
1. Juxtaposed images forming an uninterrupted sequence of colors, and corresponding to the decomposition of white light by refraction (prism) or by diffraction (network) (rainbow).
Solar spectrum.
Physics: Variation in the intensity or in the phase of a complex radiation (according to the wavelength, the frequency, the energy, etc.); distribution that reflects this variation. ; by ...
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