from The American Heritage® Dictionary of the English Language, 4th Edition

  • adj. Neither having nor producing echoes: an anechoic chamber.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • adj. lacking echos; that absorbs sound

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • adj. not having or producing echoes; sound-absorbent


Sorry, no etymologies found.


  • The Charlotte’s “dead room”—designed after a similar structure at Bell Laboratories—was what was formally known as an anechoic chamber.

    Deception Point

  • The so-called anechoic chamber, which measures nearly 36-feet long, is made of special material that absorbs electromagnetic waves.

    Stress Testing Metal Detectors and Other Devices

  • Apple's website, the labs consist of 17 antenna characterisation, or "anechoic", chambers that are used to measure overall antenna performance.

    ZDNet Australia

  • It's an amazing, slightly dizzying experience, and one that works on the mind in somewhat the same way as the anechoic chamber works with sound -- or the absence thereof.

    Peter Clothier: Phenomenal

  • Stephen Voss for The Wall Street Journal Dr. Bassen inside the FDA's anechoic chamber, used to study if electronics interfere with medical devices.

    Stress Testing Metal Detectors and Other Devices

  • "Forty years after entering an anechoic chamber for the first time, I still remember my strange feelings of pressure, discomfort, and disorientation," said Barry Blesser, co-author of the book Spaces Speak, Are You Listening?

    The disquieting sound of The Great White Silence

  • The Democratic Party exists in an anechoic chamber when compared to that.

    John Terry’s sacking as England captain tells us something interesting...

  • You'll even get a glimpse of Elias testing audio in our anechoic chamber!

    CR Video: How we test pocket camcorders

  • I also remember being in the anechoic chamber at Lincoln Lab getting a demo in adaptive noise suppression algorithm use, which cleaned something up with a really horrendous signal to noise ratio....

    Making Light: Open thread 134

  • The University College London placed a tray of jello in the shape of St Paul's cathedral in an anechoic chamber and recorded the sound it made when it wobbled.

    Boing Boing


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  • JM gives a shout out to the Anechoic Club.

    October 26, 2010

  • 2.84 Describe the construction of an anechoic chamber.—Anechoic chambers are enclosures that are echo-free, withing a specified frequency range.”

    Audio Cyclopedia by Howard M. Tremaine, Howard W. Sams & Co., 1969, pg. 66

    February 4, 2010