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flashboard

[ flash-bawrd, -bohrd ]

noun

, Civil Engineering.
  1. a board, or one of a series of boards, as on a milldam, used to increase the depth of the impounded water.


flashboard

/ ˈflæʃˌbɔːd /

noun

  1. a board or boarding that is placed along the top of a dam to increase its height and capacity Also calledstop logstop plank
“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012


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Word History and Origins

Origin of flashboard1

First recorded in 1760–70; flash + board
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Example Sentences

The water poured over the flashboard with a splashing murmur at that distance, and ran down under the bridge in a rocky bed.

Thus meditating he drew nearer to the place where the flashboard was down and the water poured into the rocky river bed.

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