The relatively clean waste water from baths, sinks, washing machines, and other kitchen appliances.
〈技〉灰（色）水（浴室、洗涤槽、洗衣机和其他厨房设施排出的相对干净的废水）。比较BLACK WATER
Compare with black water
Example sentencesExamples
Systems that capture and reuse either rain water or so-called gray water from sinks and water fountains are proving to be cost effective.
A one-week cruise can generate more than one million gallons of grey water - waste water from showers, galleys, and laundry - and 210,000 gallons of black water, or sewage.
The use of untreated grey water on your garden will degrade the fertility of your soil and damage your plants.
After consumption, about 80 per cent of the water comes out as waste and this includes black water - toilet water - and grey water - bath water.
Reed beds and mini wetlands are also used to clean grey water from baths and sinks so that the filtered water can feed vegetable patches or be used elsewhere in the garden.