gauge line

noun

Definition of gauge line

: a line ⁵/₈ inch below the center of the running surface of a railroad rail along the side of the head nearer the center of track

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Cite this Entry

“Gauge line.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/gauge%20line. Accessed 29 Oct. 2020.

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