This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

• Lexulous
• Wordscraper
• Wordosaur

n. Water that exists beneath the earth's surface in underground streams and aquifers.

"Basic lead information, social and political updates, links to other sites that address lead (in groundwater, soil andceramics), information on lead in paint, lead exposure during pregnancy, lead and behavior (references on each), and links to EPA, and CDC Web sites on lead."

aquifer    convective    geothermal    wastewater    menstrual