The Collaborative International Dictionary of English v.0.48:

Baritone \Bar"i*tone\, a. & n.
   See Barytone.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Barytone \Bar"y*tone\, Baritone \Bar"i*tone\, a. [Gr.
   bary`tonos; bary`s heavy + to`nos tone.]
   1. (Mus.) Grave and deep, as a kind of male voice.
      [1913 Webster]

   2. (Greek Gram.) Not marked with an accent on the last
      syllable, the grave accent being understood.
      [1913 Webster] Barytone

The Collaborative International Dictionary of English v.0.48:

Barytone \Bar"y*tone\, Baritone \Bar"i*tone\, n. [F. baryton:
   cf. It. baritono.]
   1. (Mus.)
      (a) A male voice, the compass of which partakes of the
          common bass and the tenor, but which does not descend
          as low as the one, nor rise as high as the other.
      (b) A person having a voice of such range.
      (c) The viola di gamba, now entirely disused.
          [1913 Webster]

   2. (Greek Gram.) A word which has no accent marked on the
      last syllable, the grave accent being understood.
      [1913 Webster]

WordNet (r) 3.0 (2006):

baritone
    adj 1: lower in range than tenor and higher than bass; "a
           baritone voice"; "baritone oboe"
    n 1: a male singer [syn: baritone, barytone]
    2: the second lowest adult male singing voice [syn: baritone,
       baritone voice]
    3: the second lowest brass wind instrument [syn: baritone,
       baritone horn]