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British Dictionary definitions for grey water

grey water

noun
  1. household waste water that can be reused for some purposes without purification, e.g. bath water, which can be used to water plantsCompare black water
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Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Examples from the Web for grey water

Historical Examples

  • Garth's eyes sought the landing-stage, then swept the vista of grey-water ahead of them.

    The Hermit of Far End

    Margaret Pedler