1. Pertaining to a flood, especially that in Noah's days; effected or produced by a deluge.

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

• siluvial,
• xiluvial,
• ciluvial,
• filuvial,
• riluvial,
• eiluvial,
• duluvial,
• djluvial,
• dkluvial,
• doluvial,
• d9luvial,
• d8luvial,
• dikuvial,
• dipuvial,
• dilluvial,
• dyluvial,
• diluvieal,
• deluvial,
• deluvia,
• deluvil

The adjective form of the word "diluvial" is "diluvian".

The plural form of the word "diluvial" is "diluvials".

The singular form of the word "diluvial" is "diluvium"