SPECTRUM, an array of the components of a light wave [n]
Used to classify something, or suggest that it can be classified, in terms of its position on a scale between two extreme or opposite points
A wide range
A band of colors, as seen in a rainbow, produced by separation of the components of light by their different degrees of refraction according to wavelength
The entire range of wavelengths of electromagnetic radiation
An image or distribution of components of any electromagnetic radiation arranged in a progressive series according to wavelength
A similar image or distribution of components of sound, particles, etc., arranged according to such characteristics as frequency, charge, and energy