a room or other enclosed space that amplifies and reflects sound, generally used for broadcasting or recording echos or hollow sound effects: an open-air echo chamber;The hallway is a giant echo chamber.
an environment in which the same opinions are repeatedly voiced and promoted, so that people are not exposed to opposing views: an online echo chamber;We need to move beyond the echo chamber of our network to understand diverse perspectives.
Origin of echo chamber
An Americanism dating back to 1935–40
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for echo chamber
Contemporary Examples of echo chamber
Facebook and Twitter enhance the echo-chamber effect; people tend to trust their friends.Obamacare Failed to Win Over Critics Because the Era of Big Ideas Is Over
June 29, 2012
a room with walls that reflect sound. It is used to make acoustic measurements and as a source of reverberant sound to be mixed with direct sound for recording or broadcastingAlso called: reverberation chamber
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