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

  • n. A sewage-disposal tank in which a continuous flow of waste material is decomposed by anaerobic bacteria.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A small-scale watertight treatment system for domestic sewage in which the flow is slowed to allow sedimentation and sludge digestion by bacteria to take place.
  • n. Yank (American person)

from The Century Dictionary and Cyclopedia

  • n. See tank.

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

  • n. large tank where solid matter or sewage is disintegrated by bacteria


Sorry, no etymologies found.


  • He'd been told that the second septic tank on the other side of the house was too old, too small.

    I Don’t Understand ?

  • After several months some engineer officers, under the leadership of Major Fred Saint of Elmhurst, Illinois, organized a sanitary detail, and succeeded in building deep septic tank type latrines that would not cave in.

    Blood Brothers

  • The water came from a well on the property, so no one would be reading a water meter, and the runoff and waste from his one toilet would flow into the same septic tank that was used by the convent.


  • She was witness to bizarre sights: three homeless albinos living in Golden Gate Park, a BMW suddenly swallowed up by an ancient septic tank in Woodside, a loose buffalo strolling down Taraval Street.

    The Bonesetter's Daughter


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