Merriam-Webster Collegiate Dictionary - baritone

 I. noun  also barytone  Etymology: French baryton or Italian baritono, from Greek barytonos deep sounding, from barys heavy + tonos tone — more at grieve  Date: 1609  1. a male singing voice of medium compass between bass and tenor; also a person having this voice  2. a member of a family of instruments having a range between tenor and bass; especially the ~ saxhorn or ~ saxophone  • baritonal adjective  II. adjective  also barytone  Date: 1729 relating to or having the range or part of a ~