grey water
(US gray water) noun [U] ENVIRONMENTDefinition
› 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.
(Definition of grey water noun from the Cambridge Business English Dictionary
© Cambridge University Press)
Our dictionaries
Browse the Thesaurus
Browse the Dictionary
Word of the Day
Blog
Read our blog about how the English language behaves.
New Words
Find words and meanings that have just started to be used in English, and let us know what you think of them.
