[ka-strah-toh, kuh-; It. kah-strah-taw] 
[-tee] . | a male singer, esp. in the 18th century, castrated before puberty to prevent his soprano or contralto voice range from changing. |
| ca·stra·to (kā-strä'tō, kə-) n. pl. ca·stra·ti (-tē) or ca·stra·tos A male singer castrated before puberty so as to retain a soprano or alto voice. [Italian, from Latin castrātus, past participle of castrāre, to castrate; see castrate.] |
toʊ