ruling engine

noun

Definition of ruling engine

: an exceedingly accurate and delicately adjusted machine for ruling lines (as of a diffraction grating)

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First Known Use of ruling engine

1826, in the meaning defined above

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The first known use of ruling engine was in 1826

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Cite this Entry

“Ruling engine.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/ruling%20engine. Accessed 26 Sep. 2020.

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