- pertaining to or caused by a flood or deluge.
- Geology Now Rare. pertaining to or consisting of diluvium.
- of or connected with a deluge, esp with the great Flood described in Genesis
- of or relating to diluvium
“pertaining to a flood” (or The Flood), 1650s, from Late Latin diluvialis, from Latin diluvium “flood, inundation” (see deluge (n.)). Related: Diluvian.
- Relating to or produced by a flood.