septic

adj. infected with bacteria or microorganisms; infective, likely to cause infection

Septic, a word derived from the Greek Σήψις, meaning 'putrefaction' may refer to:a septic infection, cf. sepsis.a British rhyming slang word for US American (derivation: Yankee -> Yank -> Septic Tank -> Septic). Depending on context, the word might be considered an ethnic slur, but is certainly disparaging. The Australian slang equivalent is Seppo. [1]a form of home-based sewage disposal called a septic system.slang of the Pacific Northwestern U.S. meaning "cool" or "rad"
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Adjective
1. containing or resulting from disease-causing organisms; "a septic sore throat"; "a septic environment"; "septic sewage"
(antonym) antiseptic
(similar) abscessed
(see-also) germy
2. of or relating to or caused by putrefaction; "the septic action occurs at the bottom of the septic tank"
(pertainym) decomposition, rot, rotting, putrefaction

(n.)
A substance that promotes putrefaction.
  

(n.)
A quantic of the seventh degree.
  

(a.)
Of the seventh degree or order.
  

(a.)
Alt. of Septical
  

med. septic