'Zither' definitions:

Definition of 'zither'

From: WordNet
noun
A musical stringed instrument with strings stretched over a flat sounding board; it is laid flat and played with a plectrum and with fingers [syn: zither, cither, zithern]

Definition of 'Zither'

From: GCIDE
  • Zither \Zith"er\, n. [G. zither. See Cittern.] (Mus.) An instrument of music used in Austria and Germany. It has from thirty to forty wires strung across a shallow sounding-board, which lies horizontally on a table before the performer, who uses both hands in playing on it.
  • Note: [Not to be confounded with the old lute-shaped cittern, or cithern.] [1913 Webster]