electromagnet
noun
elec·tro·mag·net i-ˌlek-trō-ˈmag-nət 
: a core of magnetic material (such as iron) surrounded by a coil of wire through which an electric current is passed to magnetize the core
Example Sentences
Recent Examples on the Web Last September, the partnership achieved the most powerful high-temperature magnetic field ever created on Earth, using the high-temperature superconducting electromagnet to create a field strength of 20 teslas. 
Caroline Delbert, Popular Mechanics, 6 June 2022 The large electromagnet was ramped to a field strength of 20 tesla—a world record for a fusion magnet. Melanie Windridge, Forbes, 5 Jan. 2022 What does 10 billion volts even mean for an electromagnet? Rhett Allain, Wired, 31 Dec. 2021 For the first time, scientists used a superconducting electromagnet to create a field strength of 20 teslas—the most powerful magnetic field ever created on Earth. Caroline Delbert, Popular Mechanics, 27 Oct. 2021 The eventual total United States contribution, which includes an enormous central electromagnet capable, it is said, of lifting an aircraft carrier, has been estimated at about $4 billion. New York Times, 10 Aug. 2021 But the last time g-2 was measured—at Brookhaven in the 1990s using the very same electromagnet Fermilab is moving—scientists discovered that the Standard Model didn't match their findings. William Herkewitz, Popular Mechanics, 7 Apr. 2021 Also Edinburgh, an underused location where Jakob has deployed a hugely powerful electromagnet to advance his nefarious scheme. Joe Morgenstern, WSJ, 24 June 2021 Brookhaven lacked the power to make a more accurate measurement, and so the electromagnet and the researchers who ran the experiment have been waiting more than a decade to give it another try. William Herkewitz, Popular Mechanics, 7 Apr. 2021 See More
Caroline Delbert, Popular Mechanics, 6 June 2022 The large electromagnet was ramped to a field strength of 20 tesla—a world record for a fusion magnet. Melanie Windridge, Forbes, 5 Jan. 2022 What does 10 billion volts even mean for an electromagnet? Rhett Allain, Wired, 31 Dec. 2021 For the first time, scientists used a superconducting electromagnet to create a field strength of 20 teslas—the most powerful magnetic field ever created on Earth. Caroline Delbert, Popular Mechanics, 27 Oct. 2021 The eventual total United States contribution, which includes an enormous central electromagnet capable, it is said, of lifting an aircraft carrier, has been estimated at about $4 billion. New York Times, 10 Aug. 2021 But the last time g-2 was measured—at Brookhaven in the 1990s using the very same electromagnet Fermilab is moving—scientists discovered that the Standard Model didn't match their findings. William Herkewitz, Popular Mechanics, 7 Apr. 2021 Also Edinburgh, an underused location where Jakob has deployed a hugely powerful electromagnet to advance his nefarious scheme. Joe Morgenstern, WSJ, 24 June 2021 Brookhaven lacked the power to make a more accurate measurement, and so the electromagnet and the researchers who ran the experiment have been waiting more than a decade to give it another try. William Herkewitz, Popular Mechanics, 7 Apr. 2021 See More Word History
First Known Use
1821, in the meaning defined above
Kids Definition
electromagnet
noun
elec·tro·mag·net i-ˌlek-trō-ˈmag-nət
: a piece of iron encircled by a coil of wire through which an electric current is passed to magnetize the iron
Medical Definition
electromagnet
noun
elec·tro·mag·net i-ˌlek-trō-ˈmag-nət
: a core of magnetic material surrounded by a coil of wire through which an electric current is passed to magnetize the core