(also mezzo-soprano) a female singer with a voice pitched between soprano and contralto:the Polish mezzo Stefania Toczyskaa scene thundering with mezzo-sopranos
a singing voice of the mezzo type, or a part written for one:the able mezzo of Melanie Sonnenberg as Clarice [as modifier]:Della Jones brings a new vitality to her mezzo arias
Origin:
mid 18th century: Italian, from Latin medius 'middle'