adjective Pathology.

pertaining to or of the nature of sepsis; infected.

Origin of septic

1595–1605; < Latin sēpticus < Greek sēptikós, equivalent to sēpt(ós) rotted + -ikos -ic
Related formssep·ti·cal·ly, adverbsep·tic·i·ty [sep-tis-i-tee] /sɛpˈtɪs ɪ ti/, nounnon·sep·tic, adjective Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for septic

Contemporary Examples of septic

Historical Examples of septic

  • Septic tanks take care of the sewerage better than the sewer systems in some towns.

    Farm Mechanics

    Herbert A. Shearer

  • Insoluble mineral matter gradually accumulates in septic tanks, so that they must be cleaned once every few years.

  • Neither can it be advocated in the laminitis occurring as a sequel to septic metritis or to pneumonia.

    Diseases of the Horse's Foot

    Harry Caulton Reeks

  • In other words, a line of land tile like the fields of the septic tank.

    If You're Going to Live in the Country

    Thomas H. Ormsbee and Richmond Huntley

  • That terrible attack of septic pneumonia in New York, as we now know, left the heart injured and the lungs weakened.

    Marriage la mode

    Mrs. Humphry Ward

British Dictionary definitions for septic



of, relating to, or caused by sepsis
of, relating to, or caused by putrefaction


Australian and NZ informal short for septic tank
Derived Formsseptically, adverbsepticity (sɛpˈtɪsɪtɪ), noun

Word Origin for septic

C17: from Latin sēpticus, from Greek sēptikos, from sēptos decayed, from sēpein to make rotten
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 septic

c.1600, from Latin septicus "of or pertaining to putrefaction," from Greek septikos "characterized by putrefaction," from sepein "make rotten or putrid, cause to rot" (see sepsis). Septic tank is attested from 1902.

Online Etymology Dictionary, © 2010 Douglas Harper

Medicine definitions for septic




Of, relating to, having the nature of, or affected by sepsis.
Causing or producing sepsis; putrefactive.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

Science definitions for septic



A severe infection caused by pathogenic organisms, especially bacteria, in the blood or tissues. If untreated, a localized infection, as in the respiratory or urinary tracts, can lead to infection in the bloodstream and widespread inflammation, characterized initially by fever, chills, and other symptoms and later by septic shock.
Related formsseptic adjective
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.