magnetometer

noun

: an instrument used to detect the presence of a metallic object or to measure the intensity of a magnetic field

Examples of magnetometer in a Sentence

Recent Examples on the Web
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Designed to stay locked during motion More sensitive instruments such as superconducting quantum interference devices and spin-exchange relaxation-free atomic magnetometers can detect fields below one femtotesla. — Sujita Sinha, Interesting Engineering, 25 Sep. 2026 Court officers have also been told to be extra careful when searching courthouse visitors wearing ankle monitors, steel-toed shoes and large belt buckles that would set off magnetometers. — Rocco Parascandola, New York Daily News, 23 Sep. 2026 The same is true for technologies such as atomic clocks and quantum magnetometers, which are already relatively mature and have many practical applications. — IEEE Spectrum, 12 Aug. 2026 Currently, members of the public go through magnetometers and x-ray machines inside the lobby area beneath the grand staircase. — Elise Spenner, ABC News, 14 July 2026 See All Example Sentences for magnetometer

Word History

First Known Use

1827, in the meaning defined above

Time Traveler
The first known use of magnetometer was in 1827

Cite this Entry

“Magnetometer.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/magnetometer. Accessed 6 Oct. 2026.

Kids Definition

magnetometer

noun
: an instrument used to detect the presence of a metallic object or to measure the strength of a magnetic field

Medical Definition

magnetometer

noun
: an instrument used to detect the presence of a metallic object or to measure the intensity of a magnetic field

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