1. The science of water, its properties and laws.

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

• chyrology,
• gydrology,
• bydrology,
• nydrology,
• jydrology,
• uydrology,
• yydrology,
• hydeology,
• hydroligy,
• hydrologyy,
• hydrolog,
• hyrdology,
• hydromacy,
• hieroligy,
• hieroloogy,
• hierlogy,
• Higrology,
• hygeology,
• hygrlogy,
• Hyatology

• hydrolith,
• hydrolyze,
• hydrolysate,
• hydrolyse,
• hydrolyzable,
• hydrolize,
• hydrolise,
• hydrolysis.

The adjective form of the word "hydrology" is "hydrological".

The plural form of the word "hydrology" is "hydrologies".

The singular form of the word "hydrology" is "hydrology" itself.