A term used to denote a type of tinnitus (i.e. 'ringing in the ears') characterized by a single tone. The term is used in opposition to the term " noise-type tinnitus. Tonal tinnitus is considered less prevalent than noise-type tinnitus.
References
Vernon, J.A., Sanders, B.T. (2001). Tinnitus. Questionsandanswers. Boston, MA: Allynand Bacon.
Dictionary of Hallucinations. J.D. Blom. 2010.