spectrum
/ˈspɛktɹəm/
Specifically, a range of colours representing light of contiguous frequencies; hence electromagnetic spectrum, visible spectrum, ultraviolet spectrum, etc; A range; a continuous, infinite, one-dimensional set, possibly bounded by extremes
- plural
- spectra
Meanings
- 1
Specifically, a range of colours representing light (electromagnetic radiation) of contiguous frequencies; hence electromagnetic spectrum, visible spectrum, ultraviolet spectrum, etc
Tom is on the spectrum.
Tatoeba · DJ_Saidez · CC BY 2.0 FR
Opponents of the bill come from across the political spectrum.
Tatoeba · sundown · CC BY 2.0 FR
- 2
A range; a continuous, infinite, one-dimensional set, possibly bounded by extremes
- 3
The autism spectrum
- 4
A set of frequencies that are used for radio-frequency communication; not necessarily a continuous range
- 5
The pattern of absorption or emission of radiation produced by a substance when subjected to energy (radiation, heat, electricity, etc.)rare
- 6
The set of eigenvalues of a matrixrare
- 7
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 senserare
- 8
Specter, apparitionrare
- 9
The image of something seen that persists after the eyes are closedrare