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

His firm’s air-core engines represent a big leap in sustainability; Caterpillar and Rockwell Automation are investors, while the federal government’s Green Proving Ground, which tests nascent building tech in federal buildings, is evaluating Infinitum products for potential wide scale deployment.

From New York Times

The momentum of the muons can be precisely measured as they travel unperturbed by material for more than ~5 m in the air-core toroid field.

From Science Magazine

The air-core magnet system allows a relatively lightweight overall structure leading to a detector weighing 7000 tonnes.

From Science Magazine

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

From Project Gutenberg