1. A kind of clay that will sustain intense heat, used in making fire-bricks.

Nuttall's Standard dictionary of the English language By Nuttall, P.Austin

• direclay,
• cireclay,
• vireclay,
• gireclay,
• tireclay,
• rireclay,
• fureclay,
• fjreclay,
• fkreclay,
• foreclay,
• f9reclay,
• firecla,
• fierclay,
• fireclayy,
• fireklay,
• firecley,
• fireclai,
• fireclaye,
• fireclae,
• fireclaey

• firefly,
• freckle,
• freely,
• fiercely.

The adjective form of the word "fireclay" is "fireclay".

The plural of the "fireclay" can be the "fireclays".

The singular of the "fireclay" can be the "fireclay".