breaker bar

noun

A heavy-duty handle, typically long and with a nonratcheting head, that turns a socket to break loose nuts and bolts that are very tightly fastened.

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Meanings

nounbreaker bar (plural breaker bars)

plural breaker bars

  1. mechanical tradesA heavy-duty handle, typically long and with a nonratcheting head, that turns a socket to break loose nuts and bolts that are very tightly fastened.
  2. mechanical tradesA bar inside a hammer mill against which the milled material is thrown by the hammers; the material breaks upon hitting it.

Origin

Open compound noun, break + -er + bar.

Full word history & related roots →
Cite this entry
APA

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

MLA

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

Chicago

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

Source: breaker bar on Wiktionary, CC BY-SA 4.0.