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sand jack

noun (1)
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Definition of sand jack

 (Entry 1 of 2)

: a device consisting essentially of a sandbox and a series of plungers for gradually lowering into position a heavy weight (as a bridge section) supported by the plungers by running out the sand below

sand jack

noun (2)

Definition of sand jack (Entry 2 of 2)

: bluejack

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Dictionary Entries Near sand jack

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sand jack

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“Sand jack.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/sand%20jack. Accessed 22 Oct. 2021.

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