1. A floral envelope.

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

• aperiant,
• pectiante,
• oerianth,
• lerianth,
• -erianth,
• 0erianth,
• pwrianth,
• psrianth,
• pdrianth,
• prrianth,
• p4rianth,
• p3rianth,
• peeianth,
• periath,
• peiranth,
• perilymth,
• perriapt,
• perichath,
• peninnah,
• Pernatte

• perinatal.

The adjective form of the word "perianth" is "perianthal".

The plural of the "perianth" can be the "perianthes".

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