1. Having the nature of a fistula; hollow, like a pipe or reed.

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

• distulous,
• cistulous,
• vistulous,
• gistulous,
• tistulous,
• ristulous,
• fustulous,
• fjstulous,
• fkstulous,
• fostulous,
• f9stulous,
• f8stulous,
• fisulous,
• fistulus,
• fistulos,
• mustelous,
• festicous,
• fistunut,
• fistules,
• fistulosse

• fistular,
• fistulina,
• fistula,
• fistulate,
• fictile,
• fistularia.

The adjective form of the word "fistulous" is "fistular".

The plural form of the word "fistulous" is "fistulous".

The singular form of the word "fistulous" is "fistula"