harmonichord
noun
har·mon·i·chord
härˈmänəˌkȯrd
plural harmonichords
: a 19th-century keyboard instrument in which the strings' tones can be sustained and swelled by means of a rotating cylinder that transfers its vibrations to the strings by means of a rod
Word History
Etymology
French harmonicorde, from harmonie harmony (from Old French armonie) + -corde -chord
First Known Use
1835, in the meaning defined above