needle dam

noun

Definition of needle dam

: a barrier consisting of horizontal bars dropped into grooves in the abutments of a pass through a dam or of planks set on end and removable in case of flood

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Cite this Entry

“Needle dam.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/needle%20dam. Accessed 14 Aug. 2022.

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