Added 9 October 2026 antiseptic /ˌæntiˈsɛptɪk/ noun Categories: ThingsRare Words noun ! Definition from WordNet 3.1, Princeton University. Pronunciation from Wiktionary, via Kaikki.org. More about antiseptic at Wordnik → Where our words come from → A substance that destroys micro-organisms that carry disease without harming body tissues. adjective Thoroughly clean and free of or destructive to disease-causing organisms. doctors in antiseptic green coats Clean and honest. antiseptic financial practices Freeing from error or corruption. the antiseptic effect of sturdy criticism Origin From anti- + septic. From Wiktionary, via Kaikki.org (CC BY-SA) Related Words: disinfectantpurifyingcleansinggermicidalbactericidalsterilecleanasepticunobjectionableincorruptnonpurulentuninfected Back to today's word