Contralto

Part of speech: noun (n.)

1. The part sung by the highest male or lowest female voices; the alto or counter tenor.

2. the voice or singer performing this part; as, her voice is a contralto; she is a contralto.

Part of speech: adjective (a.)

Of or pertaining to a contralto, or to the part in music called contralto; as, a contralto voice.