an orderly arrangement

of or relating to a spectrum

an isolated component of a spectrum formed by radiation at a uniform frequency

of or relating to a spectrum

the spectrum of electromagnetic radiation that has passed through a medium that absorbed radiation of certain wavelengths

the efficiency with which electromagnetic radiation produces a photochemical reaction plotted as a function of the wavelength of the radiation

(physics) a spectrum of radiation caused by electron transitions within an atom; the series of spectrum lines is characteristic of the element

the entire frequency range of electromagnetic waves

spectrum of electromagnetic radiation emitted by a self-luminous source

an isolated component of a spectrum formed by radiation at a uniform frequency