mez·zo-so·pra·no /-səˈpræ(ˌ)no, ˈprɑ-/
  Mez·zo-so·pra·no a. Mus. Having a medium compass between the soprano and contralto; -- said of the voice of a female singer. -- n. (a) A mezzo-soprano voice. (b) A person having such a voice.
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  mezzo-soprano
       n 1: a soprano with a voice between soprano and contralto [syn: mezzo]
       2: the female singing voice between contralto and soprano [syn:
           mezzo]