a. [f. BIN- (or L. bīnī two by two) + AURAL, f. L. auris ear.] Of or pertaining to one’s two ears; used with both ears, as the binaural stethoscope.
1881. Le Conte, Light, 265. A kind of binaural audition, by means of which we judge imperfectly of direction of sound.
1882. Nature, XXV. 208/2. Papers on the Binaural Audition and the Phenautograph, by Prof. S. P. Thompson.
