Synonyms

radio spectrum

American

noun

the portion of the electromagnetic spectrum that includes radio waves.

radio spectrum British

noun

the range of electromagnetic frequencies used in radio transmission, lying between 10 kilohertz and 300 000 megahertz

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of radio spectrum

First recorded in 1925–30

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Meanwhile, observations from uGMRT indicate that this compressed region has an ultra-steep radio spectrum.

From Science Daily • Apr. 13, 2026

It also proposed giving telecoms operators longer radio spectrum licences to "increase predictability" and making them renewable by default.

From Barron's • Jan. 21, 2026

It allocates global radio spectrum and satellite orbits and is involved with setting standards for artificial intelligence.

From Reuters • Jul. 5, 2023

The direct-to-mobile cell service that BlueWalker 3 and its successors aim to provide requires a much stronger beam and broader use of the radio spectrum than existing networks, sparking concern among radio astronomers.

From Science Magazine • Nov. 13, 2022

Combing the radio spectrum, they would pick up and record sounds and signals in order to decipher the language.

From The Flying Saucers are Real by Keyhoe, Donald E. (Donald Edward)

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023