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air-core

American  
[air-kawr, -kohr] / ˈɛərˌkɔr, -ˌkoʊr /

adjective

Electricity.

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

    air-core transformer.

Etymology

Origin of air-core

First recorded in 1890–95

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

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

From Letters of a Radio-Engineer to His Son by Mills, John

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.