air-core

[ air-kawr, -kohr ]

adjective

, Electricity.

1. having a nonmagnetic core, as one of fiber or plastic, encircled by a coil air-corecoil, or containing one or more such coils:

   air-core transformer.

Word History and Origins

Origin of air-core¹

First recorded in 1890–95

Example Sentences

In this latter figure you will notice a small air-core coil, LR, between the oscillator and the modulator tube.

From Project Gutenberg