1
: of, relating to, or causing putrefaction
2
: relating to, involving, caused by, or affected with sepsis
septic patients
3
: used for sewage treatment and disposal
a septic system
also : of or relating to a septic system
septic effluents

Examples of septic in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Officials said the findings were indicative of failing septic systems creating runoff into the surface waters. Christin Lazerus, Chicago Tribune, 19 Aug. 2026 During production, technical difficulties—including the failure of the septic system at her home, where the show was being filmed—made the experience unenjoyable. Encyclopedia Britannica, 18 Aug. 2026 PennEnvironment's report said contamination from sewage overflow, septic systems and manure from farms can carry bacteria into waterways. Joe Brandt, CBS News, 17 Aug. 2026 The state and county allege the facility could overwhelm the property’s septic system, disturb hazardous materials and cause other environmental harm. Ethan Baron, Mercury News, 16 Aug. 2026 See All Example Sentences for septic

Word History

Etymology

Latin septicus, from Greek sēptikos, from sēpein to putrefy

First Known Use

1597, in the meaning defined at sense 1

Time Traveler
The first known use of septic was in 1597

Browse Nearby Words

Cite this Entry

“Septic.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/septic. Accessed 25 Aug. 2026.

Medical Definition

septic

adjective
1
2
: relating to, involving, caused by, or affected with sepsis
septic complications
septic arthritis
septic patients
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