A Jurassic marine sedimentary rock formation underlying much of southeast England, from as far west as Dorset and as far north as Yorkshire.

As cold as clay; lifeless.

An argillaceous rock that splits readily into thin sheets.

plural of clay slate

A dialect of West Frisian spoken in the clay region.

A yellowish clay containing a large quantity of iron ore.

(tennis) Alternative form of claycourt

plural of clay court

(tennis) A tennis player who plays on a claycourt

(slang, archaic) A long pipe for smoking; a churchwarden pipe.