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


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