[ uh-sep-tik, ey-sep- ]
/ əˈsɛp tɪk, eɪˈsɛp- /


free from the living germs of disease, fermentation, or putrefaction.


a product, as milk or fruit juice, that is marketed in an aseptic package or container.
aseptics, (used with a singular verb) a system of packaging sterilized products in airtight containers so that freshness is preserved for several months.

Nearby words

  1. asemic,
  2. asenath,
  3. asepalous,
  4. asepsis,
  5. aseptate,
  6. aseptic meningitis,
  7. aseptic necrosis,
  8. aseptic surgery,
  9. aser,
  10. asexual

Origin of aseptic

First recorded in 1855–60; a-6 + septic

Related formsa·sep·ti·cal·ly, adverba·sep·ti·cism [uh-sep-tuh-siz-uh m, ey-sep-] /əˈsɛp təˌsɪz əm, eɪˈsɛp-/, nounnon·a·sep·tic, adjectivenon·a·sep·ti·cal·ly, adverb Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for aseptic

British Dictionary definitions for aseptic


/ (əˈsɛptɪk, eɪ-) /


free from living pathogenic organisms; sterile
aiming to achieve a germ-free condition
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

Word Origin and History for aseptic



1859, from a- (2) "not" + septic. As a noun from 1884.

Online Etymology Dictionary, © 2010 Douglas Harper

Medicine definitions for aseptic


[ ə-sĕptĭk, ā- ]


Of, relating to, or characterized by asepsis.

The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

Science definitions for aseptic


[ ə-sĕptĭk, ā-sĕptĭk ]

Free of microorganisms that cause disease.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.