overvoltage
noun
over·volt·age
ˌō-vər-ˈvōl-tij 
1
: the excess potential required for the discharge of an ion at an electrode over and above the equilibrium potential of the electrode
2
: voltage in excess of the normal operating voltage of a device or circuit
Examples of overvoltage in a Sentence
Recent Examples on the Web
This overvoltage can cause thermal runaway, and most fuses are ineffective at low current faults.
—
Joern Hackbarth, Forbes.com, 24 July 2025
Such a high overvoltage reduces electric efficiency—that is, the fraction of the energy pumped into the battery during charging that’s returned during discharge.
—IEEE Spectrum, 26 Feb. 2016
The system is designed such that if the overvoltage occurs while the car is in motion, the power steering remains active until the car next stops.
—Jonathan M. Gitlin, Ars Technica, 21 Feb. 2025
Hyundai will instruct owners to take affected vehicles to dealerships to replace the ICCU and its associated fuse and install new software to prevent overvoltage that could damage the part again.
—Umar Shakir, The Verge, 22 Nov. 2024
There is protection against short circuits, overvoltage and overcurrent.
—Mark Sparrow, Forbes, 17 Oct. 2024
The multi-charging protection keeps your device safe from overvoltage, overcurrents, and more.
—Chris Hachey, BGR, 26 Apr. 2022
There’s also protection against overcurrent, overvoltage and overheating.
—Mark Sparrow, Forbes, 12 Aug. 2022
To safeguard your computer and other electronics, there is surge protection, overcurrent protection and overvoltage protection.
—Marc Saltzman, USA TODAY, 16 Apr. 2022
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Joern Hackbarth, Forbes.com, 24 July 2025
Such a high overvoltage reduces electric efficiency—that is, the fraction of the energy pumped into the battery during charging that’s returned during discharge.
—IEEE Spectrum, 26 Feb. 2016
The system is designed such that if the overvoltage occurs while the car is in motion, the power steering remains active until the car next stops.
—Jonathan M. Gitlin, Ars Technica, 21 Feb. 2025
Hyundai will instruct owners to take affected vehicles to dealerships to replace the ICCU and its associated fuse and install new software to prevent overvoltage that could damage the part again.
—Umar Shakir, The Verge, 22 Nov. 2024
There is protection against short circuits, overvoltage and overcurrent.
—Mark Sparrow, Forbes, 17 Oct. 2024
The multi-charging protection keeps your device safe from overvoltage, overcurrents, and more.
—Chris Hachey, BGR, 26 Apr. 2022
There’s also protection against overcurrent, overvoltage and overheating.
—Mark Sparrow, Forbes, 12 Aug. 2022
To safeguard your computer and other electronics, there is surge protection, overcurrent protection and overvoltage protection.
—Marc Saltzman, USA TODAY, 16 Apr. 2022
Cite this Entry
“Overvoltage.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/overvoltage. Accessed 31 Jul. 2025.
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