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spectral color

spectral color

7.3
A color seen in a rainbow that comes from one light wave, not a mix of colors
  • noun
  • /ˈspɛktrəl ˈkoʊlər/
  • Specialized
translation icon : color espectral
  • In a rainbow, each band represents a different spectral color, illuminating the sky with vibrant shades.

Examples

  • The sensor will be submitted to see the spectral color of ingredients, white meat, possibly cooked food items.

    Blog text (26)
  • 39 But, although it may be perceived to be unmixed, 40 brown also has a very wide range of affinities with the long-wave spectral colors yellow, orange, and red.

    Academic text (1990)
  • I reused the spectral colors on the trunk lines, highlighting an elegance and reality inherent in the system that Tauranac-Hertz understood, but kept it clear by representing each route with its own graphic line.

    Blog text (1)
  • The scientist explained that a spectral color is produced when light passes through a prism and separates into distinct hues.

  • Artists often use spectral colors to create vivid displays, as they reflect pure wavelengths of light rather than mixtures.

Surface Forms

Morphology

spectral + color

The meaning is directly compositional: 'spectral' (= pertaining to a spectrum) modifies 'color', so a learner who knows both words can infer it refers to a color from the spectrum (i.e., associated with a single wavelength). Although the term is somewhat technical, its sense follows regular modifier+noun composition and is therefore transparently derivable from the parts.

Etymology

Spectral color comes from the image of a glass prism or a rainbow splitting white light into separate bands of color. Each band is one spectral color, light of a 'single wavelength' rather than a mix, so the term means a pure color.