septic tank


: a tank in which the solid matter of continuously flowing sewage is disintegrated by bacteria

Example Sentences

Recent Examples on the Web The initial call indicated that the dog fell into a sinkhole, but responding units later found that the dog had fallen into a septic tank. Gregory Yeestaff Writer, Los Angeles Times, 7 Dec. 2022 Instead of soil, the ground in the Keys is mostly made of porous limestone bedrock, which allows waste from a leaking septic tank to quickly reach the shore. Ed Yong, Discover Magazine, 23 Aug. 2011 The inspector said that housing violated standards: an overflowing septic tank, evidence of roaches in the refrigerators, water leaks in the living units and a hole in a wall large enough for animals to crawl through. Maria Perez, USA TODAY, 21 July 2022 Police reported at 11:31 that the septic tank company truck driver had all of the proper paperwork to proceed. Thomas Jewell, cleveland, 3 Dec. 2022 Given that Malibu lacks a sewer system, neighbors protested, not wanting a condo-sized septic tank stinking up the area, and the group eventually gave up. Jack Flemming, Los Angeles Times, 26 Nov. 2022 Further, the septic tank systems discharge waste into a tributary of the East Branch of the Rocky River or into storm sewers that ultimately discharge into that tributary. Bob Sandrick, cleveland, 18 Oct. 2022 Many in the Black Belt live in areas that are too rural for large sewer lines to be cost-effective, but where the thick clay soil makes most septic tank systems ineffective. Dennis Pillion |, al, 18 Sep. 2022 And a septic tank bottom often costs less than a fiberglass pond. Mia Taylor, Better Homes & Gardens, 30 Sep. 2022 See More

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'septic tank.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

Word History

First Known Use

1896, in the meaning defined above

Time Traveler
The first known use of septic tank was in 1896

Dictionary Entries Near septic tank

Cite this Entry

“Septic tank.” Dictionary, Merriam-Webster, Accessed 31 Jan. 2023.

Kids Definition

septic tank

: a tank in which solid sewage is broken down by bacteria

More from Merriam-Webster on septic tank

Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

The Great British Vocabulary Quiz

  • union jack speech bubble
  • Named after Sir Robert Peel, what are British police called?
True or False

Test your knowledge - and maybe learn something along the way.

Solve today's spelling word game by finding as many words as you can with using just 7 letters. Longer words score more points.

Can you make 12 words with 7 letters?