The several colored and other rays of which light is composed, separated by the refraction of a prism or other means, and observed or studied either as spread out on a screen, by direct vision, by photography, or otherwise. See Illust. of Light, and Spectroscope.
A luminous appearance, or an image seen after the eye has been exposed to an intense light or a strongly illuminated object. When the object is colored, the image appears of the complementary color, as a green image seen after viewing a red wafer lying on white paper. Called also ocular spectrum.
Red is such an interesting color to correlate with emotion, because it's on both ends of the spectrum. On one end you have happiness, falling in love, infatuation with someone, passion, all that. On the other end, you've got obsession, jealousy, danger, fear, anger and frustration. Taylor Swift
Mild autism can give you a genius like Einstein. If you have severe autism, you could remain nonverbal. You don't want people to be on the severe end of the spectrum. But if you got rid of all the autism genetics, you wouldn't have science or art. All you would have is a bunch of social 'yak yaks.' Temple Grandin
The baby boomers' politics have covered a wide band of silliness, from the Weather Underground to the Timothy McVeigh types. The great majority of us are well in the middle of that spectrum, but still, there's been both leftie silliness and right-wing silliness. P. J. O'Rourke
On the broad spectrum of solitude, I lean toward the extreme end: I work alone, as well as live alone, so I can pass an entire day without uttering so much as a hello to another human being. Sometimes a day's conversation consists of only five words, uttered at the local Starbucks: 'Large coffee with milk, please.' Caroline Knapp
One of the really remarkably beneficial aspects of genetic engineering is that much of the previous methodology for controlling pests and so forth is through chemicals that affect a very broad spectrum of insects, for example, or fungicides that control fungi. Nina Fedoroff