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(Russian, kloaka). (1) An underground canal for sewage. Sewers originated in antiquity in Babylon, Carthage, Jerusalem, and several cities of Egypt. The best known is the Cloaca Maxima, which was built in ancient Rome several centuries before the Common Era.
(2) A polluted place, a dump; figuratively, an immoral environment, a depraved, low community.
(sewage conduit), the section of a sewer network that collects the waste waters of the sewerage basin.
There are sewerage-basin conduits, which receive the effluents of the sewer network of a single sewerage basin; sewage mains, which collect the effluents of two or more single-basin conduits; and out-of-town, or discharge, mains, which carry the effluents, without branching, beyond the sewerage area to the pumping stations or treatment facilities or for release into a body of water. The large conduits in large cities are often called canals. Sewers are built predominantly by industrial methods from large prefabricated elements (concrete, reinforced-concrete, and ceramic blocks and piping).
IU. M. LASKOV
What does it mean when you dream about a sewer?
Sewers signify putrid conditions, perhaps the “rotting” remains of old circumstances or relationships. Waste also fertilizes and thus can signify regeneration. Perhaps the dreamer needs to eliminate noxious conditions or ideas before beginning new endeavors.