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
That began to change last year when SpaceX agreed to acquire Echostar’s 65 megahertz of spectrum for $17 billion to help propel Starlink Mobile.
—
Morgan Brennan,harriet Taylor, CNBC, 12 June 2026
In the '90s and early 2000s, there was a similar race to increase computer clock speed (megahertz to gigahertz).
—Charles Pensig, Forbes.com, 14 May 2026
Heavier particles like antiprotons (or calcium ions) prefer much slower megahertz (MHz) fields.
—Rupendra Brahambhatt, Interesting Engineering, 11 Apr. 2026
That means scientists need to listen to frequencies well below 50 megahertz—parts of the radio spectrum that are largely blocked by Earth’s ionosphere.
—IEEE Spectrum, 20 Jan. 2026
See All Example Sentences for megahertz
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Morgan Brennan,harriet Taylor, CNBC, 12 June 2026
In the '90s and early 2000s, there was a similar race to increase computer clock speed (megahertz to gigahertz).
—Charles Pensig, Forbes.com, 14 May 2026
Heavier particles like antiprotons (or calcium ions) prefer much slower megahertz (MHz) fields.
—Rupendra Brahambhatt, Interesting Engineering, 11 Apr. 2026
That means scientists need to listen to frequencies well below 50 megahertz—parts of the radio spectrum that are largely blocked by Earth’s ionosphere.
—IEEE Spectrum, 20 Jan. 2026
See All Example Sentences for megahertz
Cite this Entry
“Megahertz.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/megahertz. Accessed 17 Jun. 2026.
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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