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• Permalloy
  Permalloy

  a brand name for any of a class of alloys of high magnetic permeability, containing from 30 to 90 percent nickel.
• permalloy
  permalloy

  noun

  any of various alloys containing iron and nickel (45–80 per cent) and sometimes smaller amounts of chromium and molybdenum

Permalloy

American  

[purm-al-oi, pur-muh-loi] / ˌpɜrmˈæl ɔɪ, ˈpɜr məˌlɔɪ /

Trademark.

1. a brand name for any of a class of alloys of high magnetic permeability, containing from 30 to 90 percent nickel.

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permalloy British  

/ pɜːmˈælɔɪ /

noun

1. any of various alloys containing iron and nickel (45–80 per cent) and sometimes smaller amounts of chromium and molybdenum

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Etymology

Origin of Permalloy

First recorded in 1920–25; perm(anent) + alloy

Example Sentences

See Examples For:

permalloy

By the use of permalloy, a nickel-iron mixture, around its copper core, the cable is able to transmit about 1,700 letters a minute as compared to some 250 a minute by ordinary cable.

From Time Magazine Archive

Around the copper conductor of the 3,800-mile strand is wound a continuous strip of "permalloy" ribbon, an alloy of iron and nickel which conducts current very freely, permitting signals to be sent close together.

From Time Magazine Archive

In the new type of cable a thin layer of permalloy surrounds the copper core, under the gutta percha and wire coating on the outside.

From Time Magazine Archive

They invented permalloy and thereby quadrupled the amount of messages possible to send over cables.

From Time Magazine Archive

The acquisition of Federal Telegraph's Pacific Coast radio system seems to put the Mackay Companies in command of transpacific communications, and may put to naught Western Union's contemplated permalloy cable.

From Time Magazine Archive