(of a recording chamber, television studio, or the like) characterized by an unusually low degree of reverberation; echo-free.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
How to use anechoic in a sentence
In a proof of concept, a volunteer sat in an anechoic chamber—a room designed to block out surrounding sound or electromagnetic waves.Metasurfaces Open the Door to Telekinesis and Telepathy With Technology | Shelly Fan | June 28, 2022 | Singularity Hub
That’s how crystal clear the acoustics are in this anechoic chamber.
British Dictionary definitions for anechoic
having a low degree of reverberation of sound: an anechoic recording studio
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