IPA: /dɪˈluːviəl/
KK: /dɪˈluːviəl/
Relating to or caused by a flood.
The diluvial deposits were found in the valley after the heavy rains.
Diluvial → It is formed from "di-" (meaning through or apart) and "luvialis" (from Latin "luere", meaning to wash). The word "diluvial" refers to something related to or caused by a flood, particularly one that washes away or alters the landscape.
Think of something that is 'washed away' ('luere') through a flood ('di-'), which helps you remember that 'diluvial' relates to flood-related events.