Spectrum (disambiguation)

A spectrum is a condition or value that is not limited to a specific set of values but can vary infinitely within a continuum.

Spectrum can also be

In physical sciences
 The electromagnetic spectrum
 The spectral class of asteroids
 The visible spectrum or optical spectrum, a subset of the electromagnetic spectrum
 An emission spectrum observed in light
 An absorption spectrum observed in light
 Radio spectrum, a radio frequency subset (or part) of the electromagnetic spectrum
 The spectral class of stars in Stellar classification
 The timbre (spectrum of sound energy) of a musical note
 The energy spectrum of a collection of particles (particle physics)
 The frequency spectrum of a signal
 The power spectrum of a signal
 The spectrum of activity of a chemical

Proper nouns
 The ZX Spectrum, an early British home computer
 IEEE Spectrum, a magazine
 Spectrum (magazine), published by the Seventh-day Adventist Church
 Spectrum Value Partners, a management consulting firm
 Spectrum (band), an Australian group of the 1970s led by Mike Rudd
 Spectrum, a band headed by Peter Kember
 The Smith Spectrum, a sports arena in Logan, Utah, U.S.A.
 The Wachovia Spectrum, formerly The Spectrum, a sports arena in Philadelphia, Pennsylvania, U.S.A.
 Guildford Spectrum, a leisure complex in Guildford, England
 Spectrum London, UK, an art gallery
 The Gaylactic Spectrum Awards or Spectrums, a literary award
 Spectrum (album), debut album of fusion drummer, Billy Cobham

In social and medical sciences
 The economic spectrum
 The political spectrum of opinion
 A spectrum disorder, in psychiatry
 Autism for Autism Spectrum Disorder

In mathematics
 The spectrum of a matrix, in linear algebra
 The spectrum of an operator, in functional analysis (a generalisation of the spectrum of a matrix)
 The spectrum of a ring, in commutative algebra
 The spectrum of a C*-algebra
 A spectrum (homotopy theory)
 The Stone space of Boolean algebra
 The spectrum of a theory, in mathematical logic