[ an-tuh-sep-tik ]
/ ˌæn təˈsɛp tɪk /


pertaining to or affecting antisepsis.
free from or cleaned of germs and other microorganisms.
exceptionally clean or neat.
free of contamination or pollution.


an antiseptic agent.

Origin of antiseptic

First recorded in 1745–55; anti- + septic Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for antiseptic

British Dictionary definitions for antiseptic

/ (ˌæntɪˈsɛptɪk) /


of, relating to, or effecting antisepsis
entirely free from contamination
informal lacking spirit or excitement; clinical


an antiseptic agent or substance

Derived forms of antiseptic

antiseptically, adverb
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Medicine definitions for antiseptic

[ ăn′tĭ-sĕptĭk ]


Of, relating to, or producing antisepsis.
Capable of preventing infection by inhibiting the growth of infectious agents.


A substance that inhibits the proliferation of infectious agents.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

Science definitions for antiseptic

[ ăn′tĭ-sĕptĭk ]

A substance that inhibits the proliferation of infectious microorganisms.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.