dulcimer

noun
  1. a percussion instrument with metal strings stretched over a trapezoidal wooden soundboard, played by striking the strings with small hammers
  2. Usage: also called a hammered dulcimer
  3. a stringed instrument with a fretted fingerboard, played by plucking or strumming the strings, common in Appalachian folk music
  4. Usage: also called an Appalachian dulcimer or mountain dulcimer

Examples