Wiktionary
fletton
n. A clay brick.
Wikipedia
Fletton
Fletton is a residential area and electoral ward of the city of Peterborough, Cambridgeshire in the United Kingdom. For parliamentary purposes it falls within North West Cambridgeshire constituency. It has given its name to the fletton brick (see Industry below). The area is home to football team Peterborough United F.C., known locally as The Posh, who play at London Road Stadium.
158 (Royal Anglian) Transport Regiment (Volunteers), Royal Logistic Corps is headquartered at the Territorial Army centre on London Road.
Usage examples of "fletton".
Outside, though, something had fused the wall in a rather nice ceramic substance, giving the ancient flettons a melted, mirror-like finish.