floodgate

[ fluhd-geyt ]
/ ˈflʌdˌgeɪt /

noun

Civil Engineering. a gate designed to regulate the flow of water.
anything serving to control the indiscriminate flow or passage of something.

Origin of floodgate

Middle English word dating back to 1175–1225; see origin at flood, gate1
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for floodgate

British Dictionary definitions for floodgate

floodgate
/ (ˈflʌdˌɡeɪt) /

noun

Also called: head gate, water gate a gate in a sluice that is used to control the flow of waterSee also sluicegate
(often plural) a control or barrier against an outpouring or flowto open the floodgates to immigration
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