plumb rules

A form of plumb rule — A narrow board with a plumb line fastened to the top, used to determine a perpendicular.

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Meanings

noun
  1. pluralplural of plumb rule
Cite this entry
APA

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

MLA

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

Chicago

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

Source: plumb rules on Wiktionary, CC BY-SA 4.0.