radio frequency

noun

: any of the electromagnetic wave frequencies that lie in the range extending from below 3 kilohertz to about 300 gigahertz and that include the frequencies used for communications signals (as for radio and television broadcasting and cell-phone and satellite transmissions) or radar signals

Examples of radio frequency in a Sentence

Recent Examples on the Web

The idea involved rapidly switching radio frequencies between transmitter and receiver to create secure communication. —Kaif Shaikh, Interesting Engineering, 28 May 2026

Why were they not designed like all the other E-ZPass tolls by using an RFID (radio frequency identification) reader? —Voice Of The People, New York Daily News, 27 May 2026

Their capabilities include jamming pods that can intercept, process and jam enemy radio frequency signals; electronic countermeasure technology to prevent jamming by others; advanced radar; and air-to-air missiles. —Sally Krutzig, Idaho Statesman, 19 May 2026

Radar, the tech firm using radio frequency identification and artificial intelligence to track and locate store inventory, has raised $170 million in series B funding, led by Gideon Strategic Partners and Nimble Partners with participation from Align Ventures. —David Moin, Footwear News, 19 May 2026

Word History

First Known Use

1915, in the meaning defined above

Rhymes for radio frequency

• multifrequency
• infrequency

Kids Definition

radio frequency

noun

: any of the electromagnetic wave frequencies between about 3 kilohertz and 300 gigahertz that are used especially in radio and television transmission and in radar

Medical Definition

radio frequency

noun

: any of the electromagnetic wave frequencies that lie in a range extending from below 3 kilohertz to about 300 gigahertz and that include the frequencies used for communications signals (as for radio and television broadcasting and cell-phone transmissions) or radar signals

—often hyphenated when used before another noun

radio-frequency waves