homophony

from WordNet (r) 3.0 (2006)

homophony
    n 1: the same pronunciation for words of different origins
    2: part music with one dominant voice (in a homophonic style)

from The Collaborative International Dictionary of English v.0.48

Homophony \Ho*moph"o*ny\, n. [Gr. ?: cf. F. homophonie.]
   1. Sameness of sound.
      [1913 Webster]

   2. (Mus.)
      (a) Sameness of sound; unison.
      (b) Plain harmony, as opposed to polyphony. See
          {Homophonous}.
          [1913 Webster]