Definitions for "Visible Spectrum"
That part of the electromagnetic spectrum that the human eye can perceive, between the ultraviolet and the infrared (range = .4 microns to .76 microns).
the portion of the electromagnetic spectrum that we commonly call light. (155)
The range of wavelengths to which our visual system can respond, extending from about 400 (the wavelength of the color violet) to 750 nanometers (the wavelength of the color reddish orange).
Keywords:  prism, bands, hues, sunlight, dispersed
the distribution of colors produced when light is dispersed by a prism
The bands of colored light that appear when white light is passes through a prism.
The bands of hues created when sunlight passes through a prism.