Definition of permalloy in English:

permalloy

noun

  • [mass noun] An alloy of nickel and iron that is easily magnetized and demagnetized, used in electrical equipment.

    • ‘He and his colleagues deposited exquisitely thin loops of an easily magnetized nickel-iron compound called permalloy onto silicon wafers.’
    • ‘The readback portion of the head is a conventional permalloy shielded, bottom spin valve sensor.’

Origin

1920s: from permeable + alloy.

Pronunciation:

permalloy

/ˈpəːməlɔɪ/