spectrum
//ˈspɛktrəm//
Noun
spectrumSingular
spectraPlural
1
A band of colors produced when light is separated by a prism or other means, as seen in a rainbow, ranging from red to violet.
When sunlight passes through a prism, it creates a beautiful spectrum of colors.
2
The entire range of wavelengths of electromagnetic radiation, including radio waves, microwaves, infrared, visible light, ultraviolet, X-rays, and gamma rays.
The electromagnetic spectrum includes all types of radiation from radio waves to gamma rays.
3
A broad range or sequence of related qualities, ideas, or activities.
The political spectrum ranges from left to right.
4
Used to refer to a position within a scale between two extreme or opposite points.
Political views exist on a spectrum from left to right.