1. The science of or a treatise on mountains.

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

• aurology,
• irology,
• krology,
• lrology,
• prology,
• 0rology,
• 9rology,
• odology,
• ofology,
• o5ology,
• o4ology,
• orilogy,
• orklogy,
• orllogy,
• orplogy,
• or0logy,
• oreology,
• oroology,
• orrology,
• Oreoology

• Orlowsky.

The adjective form of the word "orology" is "orological".

The plural form of "orology" is "orologies".

The singular form of the word "orology" is "orologist"