glass arm

noun

A stiff arm resulting from a long session of amateur radio CW operation.

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Meanings

nounglass arm (plural glass arms)

plural glass arms

  1. slangA stiff arm resulting from a long session of amateur radio CW operation.

    If he were to use his fingers instead of his wrist, he would soon have telegrapher's paralysis or a “glass arm," in the lingo of the radio cabin.

    1926, Radio Broadcast, volume 9, page 57
Cite this entry
APA

glass arm. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/glass%20arm

MLA

“glass arm.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/glass%20arm. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “glass arm,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/glass%20arm.

Source: glass arm on Wiktionary, CC BY-SA 4.0.