Examples of milliwatt in a Sentence
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The upshot is that this arrangement allowed the engine to produce 400 milliwatts of power per square meter, or enough to run a small fan that could shift enough air to circulate carbon dioxide in a greenhouse.
—
New Atlas, 23 Nov. 2025
The measured heat flow is 46 milliwatts per square meter, which compared to Earth is two-thirds the heat loss through our continental plates.
—Keith Cooper, Space.com, 7 Nov. 2025
The design achieved power densities of 639 milliwatts/cm², which is the amount of electrical power generated per square centimeter of fuel cell area.
—Tejasri Gururaj, Interesting Engineering, 25 Sep. 2025
The company also demonstrated a custom chip that handled an even larger logical qubit, while only occupying a tiny fraction of a square millimeter and consuming just 8 milliwatts of power.
—John Timmer, Ars Technica, 9 July 2024
Lasers sold for pointing purposes legally can’t exceed 5 milliwatts.
—Catherine Allen, NBC News, 31 Jan. 2024
Stretchable solar cells exist and are already reaching efficiencies of more than 12 percent, generating about 10 milliwatts per square centimeter outdoors.
—IEEE Spectrum, 27 May 2021
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New Atlas, 23 Nov. 2025
The measured heat flow is 46 milliwatts per square meter, which compared to Earth is two-thirds the heat loss through our continental plates.
—Keith Cooper, Space.com, 7 Nov. 2025
The design achieved power densities of 639 milliwatts/cm², which is the amount of electrical power generated per square centimeter of fuel cell area.
—Tejasri Gururaj, Interesting Engineering, 25 Sep. 2025
The company also demonstrated a custom chip that handled an even larger logical qubit, while only occupying a tiny fraction of a square millimeter and consuming just 8 milliwatts of power.
—John Timmer, Ars Technica, 9 July 2024
Lasers sold for pointing purposes legally can’t exceed 5 milliwatts.
—Catherine Allen, NBC News, 31 Jan. 2024
Stretchable solar cells exist and are already reaching efficiencies of more than 12 percent, generating about 10 milliwatts per square centimeter outdoors.
—IEEE Spectrum, 27 May 2021
Cite this Entry
“Milliwatt.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/milliwatt. Accessed 11 Dec. 2025.
Copy CitationMedical Definition
milliwatt
noun
mil·li·watt
ˈmil-ə-ˌwät 
: one thousandth of a watt
—abbreviation mW
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