sand jack

noun (1)

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)

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“Sand jack.” Dictionary, Merriam-Webster, Accessed 30 Oct. 2020.

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