APA Dictionary of Psychology
spectrum
- n. (pl. spectra)
- a distribution of electromagnetic energy displayed by decreasing wavelength. In the case of the visible spectrum, it is the series of visible colors (with wavelengths in the range 400–700 nm) produced when white light is refracted through a prism.
- a wide range of associated elements, qualities, actions, or occurrences. —spectral adj.
Updated on 04/19/2018
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