variants:
or less commonly air-cored
Definition of air-core
: having no magnetic material (as iron) in its magnetic circuit
—used especially of certain coils, solenoids, or transformers
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“Air-core.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/air-core. Accessed 17 May. 2021.
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Time Traveler for air-core
The first known use of air-core was in 1891
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