The Collaborative International Dictionary of English v.0.48:

Clarichord \Clar"i*chord\, n. [F. clatocorde, fr.L. clarus clear
   + chorda string. See Chord.]
   A musical instrument, formerly in use, in form of a spinet;
   -- called also manichord and clavichord.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Clavichord \Clav"i*chord\, n. [F. clavicorde, fr. L. clavis key
   + chorda string.] (Mus.)
   A keyed stringed instrument, now superseded by the
   pianoforte. See Clarichord.
   [1913 Webster]

WordNet (r) 3.0 (2006):

clavichord
    n 1: an early stringed instrument like a piano but with more
         delicate sound