adjective relating to or resembling a ghost; ghostly
In mathematics, spectral is used in the context of spectral theory, which deals with the study of eigenvalues and eigenvectors of linear operators.
In astronomy, spectral is used to describe the analysis of light emitted or absorbed by celestial objects to determine their composition, temperature, and motion.
In chemistry, spectral is used to describe the analysis of the interaction of matter with electromagnetic radiation, such as in spectroscopy techniques.
In physics, spectral refers to the distribution of energy or intensity of a physical system as a function of wavelength or frequency.
In signal processing, spectral refers to the representation of a signal in terms of its frequency components.
In literature, the term 'spectral' can be used to describe ghostly or supernatural elements in a story, adding an eerie or mysterious atmosphere.
Psychologists may use the term 'spectral' when discussing hallucinations or other perceptual disturbances experienced by individuals with certain mental health conditions.
Physicists may use 'spectral' to refer to the distribution of energy levels in a physical system, such as the spectral lines in an atomic spectrum.
Musicians may use 'spectral' to describe the unique timbre or color of a sound, particularly in the context of spectral music or composition.
Astronomers use 'spectral' to describe the analysis of light emitted or absorbed by celestial objects, such as studying the spectral lines of stars to determine their composition.