单词	grey water
释义	English Business grey waternoun [ U ] US usually gray water uk/ˈɡreɪ ˌwɔː.tər/us/ˈɡreɪ ˌwɑː.t̬ɚ/ water that has been used before, for example for washing, that can be stored and used again, for example in toilets: Water companies are testing recycling units which take grey water and clean it up sufficiently for flushing toilets. Thesaurus: synonyms and related words Environmental issues air pollution biodegrade biotic index carbon capture carbon credits carbon-neutral defoliant dumping ground eco-footprint ecology emission exhaustible natural resources particulate photochemical smog preservation preservationist recycle recycled reduce, reuse, recycle idiom See more results » You can also find related words, phrases, and synonyms in the topics: Water in general grey waternoun [ U ] US gray water ukusENVIRONMENT water that has been used before, for example for washing, that can be stored and used again: If more properties were fitted with a grey water system we would be saving up to 30% of our fresh water.
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