Definition
Diluvial is an adjective pertaining to or caused by a flood, similar to 'diluvian.' It is often used in geological contexts to describe deposits or formations resulting from ancient floods. Think of it as the scientific term for the aftermath of a large-scale inundation. It's like seeing the watermarks on buildings after a major hurricane. While 'diluvian' often carries a connotation of a specific historical flood, 'diluvial' is more general.