1. A crystalline substance obtained from coal-tar.

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

• pyrenese,
• pyrine,
• oyrene,
• lyrene,
• 0yrene,
• ptrene,
• pgrene,
• purene,
• p7rene,
• p6rene,
• pyeene,
• pydene,
• pyfene,
• pytene,
• pyrrene,
• pyrenne,
• pyrane,
• pyrenu,
• -pyrenae,
• Piyrane

• pyron.

The adjective form of the word "pyrene" is "pyrenic".

The plural of the "pyrene" can be the "pyrenes".

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