1. Like stone: hard.

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

• oetrous,
• 0etrous,
• pwtrous,
• pstrous,
• pdtrous,
• prtrous,
• p4trous,
• p3trous,
• perrous,
• pefrous,
• petrrous,
• pettrous,
• petroius,
• peetrous,
• petroous,
• petrousse,
• petroos,
• petruss,
• petruous,
• petrsous

• petroski,
• petrucci,
• petrowski,
• petrus,
• peatross,
• pedroso,
• pedrosa,
• Petruso,
• pietrowski,
• petrograd,
• petrosino,
• petterson,
• Petros,
• petrogale,
• Petrosky,
• petters.

The adjective form of the word "petrous" is "petrose".

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

The singular form of the word "petrous" is "petrous".