[1] : The Collaborative International Dictionary of English v.0.48

cablegram \ca"blegram`\ k=a"b'lgra^m`, n. cable, n. +
   gr. gra`mma a writing, a letter.
   a message sent by a submarine telegraphic cable.

   note: a recent hybrid, sometimes found in the newspapers.
         1913 webster

[2] : WordNet (r) 2.0

cablegram
     n : a telegram sent abroad syn: cable, overseas telegram
see also:
cable overseas telegram 

Cablegram >> C Words
Cablegram, definition of term: Cablegram
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