1. A variety of granite.

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

• oegmatite,
• legmatite,
• -egmatite,
• 0egmatite,
• pwgmatite,
• psgmatite,
• pdgmatite,
• prgmatite,
• p4gmatite,
• p3gmatite,
• pefmatite,
• pevmatite,
• peymatite,
• pegmaite,
• pegmatte,
• peggmatite,
• pegmatyte,
• leggatine,
• Pernatte,
• Negracite

The adjective form of the word "pegmatite" is "pegmatitic".

The plural of the "pegmatite" can be the "pegmatites".

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