The Collaborative International Dictionary of English v.0.48:

Antiseptic \An`ti*sep"tic\, Antiseptical \An`ti*sep"tic*al\, a.
   Counteracting or preventing putrefaction, or a putrescent
   tendency in the system; antiputrefactive.
   [1913 Webster]

   Antiseptic surgery, that system of surgical practice which
      insists upon a systematic use of antiseptics in the
      performance of operations and the dressing of wounds.
      [1913 Webster]