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spectrum
Definition
A spectrum is a range of different colours. It can be seen in rainbows, sunlight, and other natural phenomena.
The colours in a spectrum are arranged in order of their wavelength. The shortest wavelengths are at the violet end of the spectrum, and the longest wavelengths are at the red end of the spectrum.
The colours in a spectrum can be separated using a prism. A prism is a triangular piece of glass that bends light. When white light passes through a prism, it is separated into its component colors.
How can the word be used?
The visible spectrum is the range of colours that can be seen by the human eye.
Different forms of the word
Noun: spectrum (plural: spectra).
Adjective: spectral.
Verb: to spectrum.
Etymology
The word "spectrum" comes from the Latin word "spectrum", which means "appearance" or "image". It was first used in English in the 14th century to refer to the range of colors visible to the human eye.
The word "spectral" means "of or relating to a spectrum". It can also mean "ghostly" or "unreal".
The word "to spectrum" means "to spread out in a spectrum".
Question
What is a spectrum?