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flood control

noun Civil Engineering.
  1. the act or technique of controlling river flow with dams, dikes, artificial channels, etc., so as to minimize the occurrence of floods.
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Origin of flood control

An Americanism dating back to 1925–30
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for flood control

flood control

noun
  1. the technique or practice of preventing or controlling floods with dams, artificial channels, etc
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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