/ ˌvɜːtʃuˈəʊsəʊ; -ˈəʊzəʊ; NAmE ˌvɜːrtʃuˈoʊsoʊ; -ˈoʊzoʊ/ noun , adjective
■ noun
( pl. vir·tu·osos or vir·tu·osi / -siː; NAmE ; -ziː/) a person who is extremely skilful at doing sth, especially playing a musical instrument :
a piano virtuoso
■ adjective
[ only before noun ] showing extremely great skill :
a virtuoso performance
a virtuoso pianist
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WORD ORIGIN
early 17th cent.: from Italian , literally learned, skilful , from late Latin virtuosus , from virtus virtue.