• synonyms


[bahy-nawr-uh l, bin-awr-uh l]
  1. having two ears.
  2. of, with, or for both ears: binaural hearing; a binaural stethoscope.
  3. (of sound) recorded through two separate microphones and transmitted through two separate channels to produce a stereophonic effect.
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Origin of binaural

First recorded in 1875–80; bin- + aural2
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for binaural

Historical Examples

  • Again, it is generally asserted that binaural hearing is of great importance for the recognition of the direction of sound.

    Criminal Psychology

    Hans Gross

  • In auscultating the heart I prefer the binaural stethoscope of the Ford pattern.

    Arteriosclerosis and Hypertension:

    Louis Marshall Warfield

  • This is the common form of a binaural resonating stethoscope.

  • It was a binaural, ultra-fidelity job, and I could close my eyes and feel the orchestra in front of me.

    Let'em Breathe Space

    Lester del Rey

  • The binaural stethoscope was invented by Cammann in 1854, and a later improvement is the phonendoscope, by Bianchi.

British Dictionary definitions for binaural


  1. relating to, having, or hearing with both ears
  2. employing two separate channels for recording or transmitting sound; so creating an impression of deptha binaural recording
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Derived Formsbinaurally, adverb
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

Word Origin and History for binaural


"pertaining to both ears," 1861, from Latin bini "twofold, two apiece" (see binary) + aural. In reference to electronic recordings, from 1933.

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Online Etymology Dictionary, © 2010 Douglas Harper

binaural in Medicine


(bī-nôrəl, bĭn-ôr-)
  1. Having or relating to both ears.
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.