megahertz
noun
mega·hertz
ˈme-gə-ˌhərts 
-ˌherts
plural megahertz
: a unit of frequency equal to one million hertz
—abbreviation MHz
Examples of megahertz in a Sentence
Recent Examples on the Web
As radio was still much more popular than television, the dial also included FM from 88 to 108 megahertz, plus a few channels used for weather and aviation.
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IEEE Spectrum, 3 July 2025
That group has designed a custom, fully digital chip that contains 18 ARM microprocessor cores operating with a clock speed of 200 megahertz—about a tenth the speed of modern CPUs.
—IEEE Spectrum, 31 May 2017
The Gold Apollo pagers can receive messages at a frequency of 450 to 470 megahertz, which can ensure communication from around 36 miles away.
—Bruna Horvath, NBC News, 20 Sep. 2024
It has been hacked in order to use frequency bands other than its original 868 to 915 megahertz.
—IEEE Spectrum, 10 Apr. 2024
See All Example Sentences for megahertz
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IEEE Spectrum, 3 July 2025
That group has designed a custom, fully digital chip that contains 18 ARM microprocessor cores operating with a clock speed of 200 megahertz—about a tenth the speed of modern CPUs.
—IEEE Spectrum, 31 May 2017
The Gold Apollo pagers can receive messages at a frequency of 450 to 470 megahertz, which can ensure communication from around 36 miles away.
—Bruna Horvath, NBC News, 20 Sep. 2024
It has been hacked in order to use frequency bands other than its original 868 to 915 megahertz.
—IEEE Spectrum, 10 Apr. 2024
See All Example Sentences for megahertz
Cite this Entry
“Megahertz.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/megahertz. Accessed 21 Jul. 2025.
Copy CitationKids Definition
megahertz
noun
mega·hertz
ˈmeg-ə-ˌhərts
-ˌhe(ə)rts
: a unit of frequency equal to one million hertz
Medical Definition
megahertz
noun
mega·hertz
ˈmeg-ə-ˌhərts
: one million hertz
—abbreviation MHz
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