Spectrum

Etymology
From spectrum: from specio:. (see scope)

Noun

 * 1) Specter, apparition.
 * 2) A range; a continuous, infinite, one-dimensional set, possibly bounded by extremes.
 * 3) Specifically, a range of colours representing light (electromagnetic radiation) of contiguous frequencies; hence electromagnetic spectrum, visible spectrum, ultraviolet spectrum, etc.
 * 4) * 2010 October 30, Jim Giles, Jammed!, in New Scientist,
 * Current 3G technologies can send roughly 1 bit of data - a one or a zero - per second over each 1 Hz of spectrum that the operator owns.
 * 1)  The pattern of absorption or emission of radiation produced by a substance when subjected to energy (radiation, heat, electricity, etc.).
 * 2)  The set of eigenvalues of a matrix.
 * 3)  Of a bounded linear operator A, the set of scalar values λ such that the operator A—λI, where I denotes the identity operator, does not have a bounded inverse; intended as a generalisation of the linear algebra sense.

Derived terms

 * light spectrum

Related terms

 * spectral

Translations

 * French:
 * Italian:
 * Japanese:


 * Romanian:
 * Russian:, диапазон


 * Czech:
 * French:
 * Hebrew:
 * Italian:
 * Japanese:, 分光特性


 * Persian:
 * Romanian:
 * Russian:
 * Volapük: späktrum


 * French:
 * German: Spektrum


 * Japanese:


 * French:
 * Italian:
 * Japanese:


 * Romanian:
 * Russian:


 * : спекър (1, 2)
 * : Spektrum (1, 2, 3)


 * : spektrum (1), widmo  (2)
 * : spektrum (2, 3)
 * : (2)
 * Cantonese: gwong1pou2
 * Mandarin: guāngpǔ

Anagrams

 * cepstrum, crumpets

Etymology
From specio:.

Noun

 * 1) appearance, image
 * 2) apparition, specter

Related terms

 * speciō
 * spectiō
 * spectō

Descendants

 * English:

spectrum spectrum spectrum spectrum spectrum fa:spectrum spectrum spectrum spectrum spectrum spectrum spectrum spectrum spectrum spectrum spectrum spectrum spectrum spectrum spectrum spectrum spectrum spectrum spectrum