gray water
noun
: household wastewater (as from a sink or bath) that does not contain serious contaminants (as from toilets or diapers)
Word History
First Known Use
1977, in the meaning defined above
Dictionary Entries Near gray water
Cite this Entry
“Gray water.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/gray%20water. Accessed 18 Apr. 2024.
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