The Collaborative International Dictionary of English v.0.48:

Cembalo \Cem"ba*lo\, n. [It. See Cymbal.] (Mus.)
   An old name for the harpsichord.
   [1913 Webster]

WordNet (r) 3.0 (2006):

cembalo
    n 1: a clavier with strings that are plucked by plectra mounted
         on pivots [syn: harpsichord, cembalo]