electrometer

noun

elec·​trom·​e·​ter i-ˌlek-ˈträ-mə-tər How to pronounce electrometer (audio)
: any of various instruments for detecting or measuring potential differences or ionizing radiations by means of the forces of attraction or repulsion between charged bodies

Examples of electrometer in a Sentence

Recent Examples on the Web
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Thomson devised the quadrant electrometer to measure electric charge. IEEE Spectrum, 2 June 2024 Using an instrument called an electrometer, built by Pierre and his brother, Marie measured the mysterious rays emitted by thorium and uranium. Adam Hadhazy, Discover Magazine, 10 Oct. 2019

Word History

First Known Use

1749, in the meaning defined above

Time Traveler
The first known use of electrometer was in 1749

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Cite this Entry

“Electrometer.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/electrometer. Accessed 9 Sep. 2025.

Medical Definition

electrometer

noun
elec·​trom·​e·​ter i-ˌlek-ˈträm-ət-ər How to pronounce electrometer (audio)
: any of various instruments for detecting or measuring electric-potential differences or ionizing radiations by means of the forces of attraction or repulsion between charged bodies
electrometric adjective

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