4.66 tinnitus. Otological condition in which sound is perceived by a person without any external auditory stimulation. The sound may be a whistling, ringing, buzzing, or cricket-type sound, but auditory hallucinations of voices are excluded.
Annotation Sometimes tinnitus is caused by sounds originating in the circulatory system. In these cases the sounds also may be heard by another person.« Back to Standards Terminolgy Index