ce·les·ta 
(sə-lĕstə) also ce·leste (-lĕst)
(sə-lĕstə) also ce·leste (-lĕst)n.
A musical instrument with a keyboard and metal plates struck by hammers that produce bell-like tones.
[French célesta, from céleste, celestial, from Latin caelestis; see CELESTIAL.]