Definition of "permalloy" [permalloy]

• Any of a class of nickel / iron alloys that have a high magnetic permeability (noun)

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• "Did a bit of work with stress reducers and surfactants vis a vis permalloy plating 20 years ago."
• "The unbreakable permalloy silicon dioxide via '. was pressure sealed. it would take an hour's soaking in strong acid to dissolve the bonding resins."
• "To a large extent they are responsible for the development of radio, the development of broadcasting equipment, the development of trans-Atlantic telephony, the development of the artificial larynx, the audiphone for testing hearing, and permalloy which enables telegraph cables to carry several times the load which they were previously able to carry, and dozens of other very interesting and very useful developments."