from The American Heritage® Dictionary of the English Language, 4th Edition

  • adj. Of, relating to, having the nature of, or affected by sepsis.
  • adj. Causing sepsis; putrefactive.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • adj. Of or pertaining to sepsis.
  • adj. Causing sepsis or putrefaction.
  • adj. Of or pertaining to sewage or the disposal of sewage.
  • n. A substance that causes sepsis or putrefaction.
  • n. A septic tank; a system for the disposal of sewage into a septic tank, a septic system.
  • n. A mathematical object (function, curve, surface, etc.) of degree seven.
  • n. An American, a Yank.

from the GNU version of the Collaborative International Dictionary of English

  • adj. Of the seventh degree or order.
  • adj. Having power to promote putrefaction.
  • n. A substance that promotes putrefaction.

from The Century Dictionary and Cyclopedia

  • Of or pertaining to sepsis in general; putrefactive or putrefying; septical: opposed to antiseptic.
  • n. A substance which causes sepsis.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • adj. of or relating to or caused by putrefaction
  • adj. containing or resulting from disease-causing organisms


Latin sēpticus, putrefying, from Greek sēptikos, from sēptos, rotten, from sēpein, to make rotten.
(American Heritage® Dictionary of the English Language, Fourth Edition)
From Ancient Greek σηπτικός (sēptikos, "characterized by putridity"), from σηπτός (sēptos), from σήπειν (sēpein). (Wiktionary)
From Latin septem ("seven"). (Wiktionary)
Short form of Cockney rhyming slang septic tank ("Yank"). (Wiktionary)


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