| Meaning | An ordered array of the components of an emission or wave. |
|---|
| Parts | spectrum line | An isolated component of a spectrum formed by radiation at a uniform frequency |
|---|
| Narrower | absorption spectrum | The spectrum of electromagnetic radiation that has passed through a medium that absorbed radiation of certain wavelengths |
|---|
| action spectrum | The efficiency with which electromagnetic radiation produces a photochemical reaction plotted as a function of the wavelength of the radiation |
| atomic spectrum | (physics) a spectrum of radiation caused by electron transitions within an atom |
| electromagnetic spectrum | The entire frequency range of electromagnetic waves |
| emission spectrum | Spectrum of electromagnetic radiation emitted by a self-luminous source |
| infrared spectrum | The spectrum of infrared radiation |
| line spectrum | A spectrum in which energy is concentrated at particular wavelengths |
| mass spectrum | A distribution of ions as shown by a mass spectrograph or a mass spectrometer |
| microwave spectrum | The part of the electromagnetic spectrum corresponding to microwaves |
| radio spectrum, radio-frequency spectrum | The entire spectrum of electromagnetic frequencies used for communications |
| sound spectrum, acoustic spectrum | The distribution of energy as a function of frequency for a particular sound source |
| ultraviolet spectrum | The spectrum of ultraviolet radiation |
| visible spectrum, color spectrum | The distribution of colors produced when light is dispersed by a prism |
| Broader | array | An orderly arrangement |
|---|
| Spanish | espectro |
|---|
| Catalan | espectre |
|---|
| Adjectives | spectral | of or relating to a spectrum |
|---|
