2 entries found for spectrum.
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spectrum electromagnetic spectrum

Main Entry: spec·trum
Pronunciation: spek-trm
Function: noun
Inflected Form(s): plural spec·tra /-tr /; or spectrums
1 a : the group of different colors including red, orange, yellow, green, blue, indigo, and violet arranged in the order of their wavelengths and seen when white light passes through a prism and falls on a surface or when sunlight is scattered by water droplets to form a rainbow b : ELECTROMAGNETIC SPECTRUM
2 : a continuous range or series <a wide spectrum of interests>

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