datagram

from The Free On-line Dictionary of Computing (8 July 2008)
datagram

   A self-contained, independent entity of data carrying
   sufficient information to be {route}d from the source to the
   destination computer without reliance on earlier exchanges
   between this source and destination computer and the
   transporting {network}.

   See also {connectionless}, {frame}, {packet}.
antiflux / dictionary / datagram
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