electromagnetic spectrum

noun
|Updated on: 19 Jul 2018

Definition of electromagnetic spectrum

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

Recent Examples of electromagnetic spectrum from the Web

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'electromagnetic spectrum.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of electromagnetic spectrum

1924

in the meaning defined above

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Medical Dictionary

electromagnetic spectrum

noun

medical Definition of electromagnetic spectrum

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

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