Definitions
1.nounA mineral substance made up of small crystals of silica and alumina, that is ductile when moist; the material of pre-fired ceramics.
2.nounAn earth material with ductile qualities.
3.nounA tennis court surface made of crushed stone, brick, shale, or other unbound mineral aggregate."The French Open is played on clay."
4.nounThe material of the human body.
5.nounA particle less than 3.9 microns in diameter, following the Wentworth scale.
6.nounA clay pipe for smoking tobacco.
7.nounA clay pigeon."We went shooting clays at the weekend."
8.nounLand or territory of a country or other political region, especially when subject to territorial claims"Danzig is rightfully German clay."
9.verbTo add clay to, to spread clay onto.
10.verb(of sugar) To purify using clay."1809, Jonathan Williams, On the Process of Claying Sugar, in Transactions of the American Philosophical Society, Volume 6."