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Webster 1913 Edition

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Adj.

Counteracting or preventing putrefaction, or a putrescent tendency in the system; antiputrefactive.

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.

antiseptical ‎(comparative more antiseptical, superlative most antiseptical)

Archaic form of antiseptic.
- 1830, Robert Smith
  Frost is possessed of strong antiseptical qualities. Animal substances of all sorts may be taken to Greenland from England, and there preserved for an indefinite length of time without being smoked, dried, or salted.