spectrum Definition

a continuum of color formed when a beam of white light is dispersed (as by passage through a prism) so that its component wavelengths are arranged in order

any of various continua that resemble a color spectrum in consisting of an ordered arrangement by a particular characteristic (such as frequency or energy): such as

electromagnetic spectrum

an electromagnetic spectrum in which a decrease in intensity of radiation at specific wavelengths or ranges of wavelengths characteristic of an absorbing substance is manifested especially as a pattern of dark lines or bands

any of a group of developmental disorders (such as autism and Asperger's syndrome) marked by impairments in the ability to communicate and interact socially and by the presence of repetitive behaviors or restricted interests —called also pervasive developmental disorder

effective against a wide range of organisms (such as insects or bacteria)

effective in protecting skin from ultraviolet radiation by absorbing or blocking both UVA and UVB rays

the entire range of wavelengths or frequencies of electromagnetic radiation extending from gamma rays to the longest radio waves and including visible light

the spectrum of a stream of gaseous ions separated according to their differing mass and charge

the region of the electromagnetic spectrum spanning the radio frequency range

a range of many different kinds