Share this entry
permalloy Syllabification: perm·al·loy
Pronunciation: /ˈpərməˌloi/ /ˌpərmˈaloi/

Definition of permalloy in English:


An alloy of nickel and iron that is easily magnetized and demagnetized, used in electrical equipment.
Example sentences
  • 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.


1920s: (originally as a trademark) from permeable + alloy. See permeability (sense 2).

Definition of permalloy in:
Share this entry

What do you find interesting about this word or phrase?

Comments that don't adhere to our Community Guidelines may be moderated or removed.

Subscribe to remove adverts and access premium resources