(1) Perceived or experienced through hearing. (2) Of or relating to the sense or organs of hearing.
Example:
With the new sophisticated sound systems that are now available, going to a movie has become an auditory experience almost as much as a visual one.
Auditory is close in meaning to acoustic and acoustical as they all relate to the hearing of sounds. Auditory, however, usually refers more to hearing than to sound. For instance, many dogs have great auditory powers. The nerve that allows us to hear by connecting the inner ear to the brain in the auditory nerve. Acoustic and acoustical refer especially to instruments and to the conditions under which sound can be heard. So architects concern themselves with the acoustic (or acoustical) properties of an auditorium, and instrument makers with those of a clarinet or piano.