pot sleeper

noun

Definition of pot sleeper

British
: a convex cast-iron or steel disk with a clamp on top that is used to fasten railroad rails in places where wooden ties are impractical

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“Pot sleeper.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/pot%20sleeper. Accessed 2 Dec. 2020.

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