The Collaborative International Dictionary of English v.0.48:

Logistics \Lo*gis"tics\, n.
   1. (Mil.) That branch of the military art which embraces the
      details of moving and supplying armies. The meaning of the
      word is by some writers extended to include strategy. --H.
      L. Scott.
      [1913 Webster]

   2. By extension: The planning and coordination of the
      movement of materials, and other details of any large
      activity, such as a business or a political campaign.
      [PJC]

   3. (Math.) A system of arithmetic, in which numbers are
      expressed in a scale of 60; logistic arithmetic.
      [1913 Webster]

WordNet (r) 3.0 (2006):

logistics
    n 1: handling an operation that involves providing labor and
         materials be supplied as needed