The Collaborative International Dictionary
Antiseptical
Antiseptic \An`ti*sep"tic\, Antiseptical \An`ti*sep"tic*al\, a. 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.
Wiktionary
antiseptical
a. (archaic form of antiseptic English)