From Longman Dictionary of Contemporary Englishldoce_322_fstringed instrumentˌstringed ˈinstrument noun [countable] APMa musical instrument such as a violin, that produces sound from a set of strings
Examples from the Corpus
stringed instrument• Writing music, the bottom line is that it's a stringed instrument but rhythmically you are playing a keyboard.• Flittern Rattletrap hammered the strings of a low-throated stringed instrument, his feet stamping time. 