Source : Webster's Revised Unabridged Dictionary (1913)

Cello \Cel"lo\, n.; pl. E. {Cellos}, It. {Celli}.
   A contraction for {Violoncello}.

Source : WordNet®

cello
     n : a large stringed instrument; seated player holds it upright
         while playing [syn: {violoncello}]

Source : Free On-Line Dictionary of Computing

Cello
     
        {World-Wide Web} {browser} {client} for {IBM PC}s.  Runs under
        {Microsoft Windows}.