English Tinnitus Cited by user Saidmann on 27 Sep 2017 Tinnitus is the hearing of sound when no external sound is present. While often described as a ringing, it may also sound like a clicking, hiss or roaring.
English Tinnitus retraining therapy Cited by user Xowe on 10 Mar 2013 Tinnitus retraining therapy (TRT) is a form of habituation therapy designed to help people who suffer from tinnitus.