Septic

Septic, when derived from the Greek Σήψις ('putrefaction'), may refer to:

• Septic shock
• Septic tank or septic system, a component of a small scale sewage disposal system
• Cockney rhyming slang for American, coming from "Septic Tank"(i.e. Yank)

Septic, when derived from the Greek ἑπτά or Latin septem ('seven'), may refer to:

• Septic equation, a polynomial of degree seven