Meaning of SPECTRUM in English



Pronunciation: ' spek-tr ə m

Function: noun

Inflected Form: plural spec · tra \ -tr ə \ or spectrums

Etymology: New Latin, from Latin, appearance ― more at SPECTER

Date: 1671

1 a : 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 b : any of various continua that resemble a color spectrum in consisting of an ordered arrangement by a particular characteristic (as frequency or energy): as (1) : ELECTROMAGNETIC SPECTRUM (2) : RADIO SPECTRUM (3) : the range of frequencies of sound waves (4) : MASS SPECTRUM c : the representation (as a plot) of a spectrum

2 a : a continuous sequence or range <a wide spectrum of interests> <opposite ends of the political spectrum > b : kinds of organisms associated with a particular situation (as an environment) c : a range of effectiveness against pathogenic organisms <an antibiotic with a broad spectrum >

Merriam Webster Collegiate English Dictionary.      Merriam Webster - Энциклопедический словарь английского языка.