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septic

[sep-tik]
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adjective Pathology.
  1. pertaining to or of the nature of sepsis; infected.
  2. putrefactive.
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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
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for septicity

septic

adjective
  1. of, relating to, or caused by sepsis
  2. of, relating to, or caused by putrefaction
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noun
  1. Australian and NZ informal short for septic tank
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Derived Formsseptically, adverbsepticity (sɛpˈtɪsɪtɪ), noun

Word Origin

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 septicity

septic

adj.

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.

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Online Etymology Dictionary, © 2010 Douglas Harper

septicity in Medicine

septic

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