- of or caused by a flood, esp. the Deluge
- of debris left by a flood or glacier
Origin of diluvialLate Latin diluvialis ; from Classical Latin diluvium: see diluvium
Of, relating to, or produced by a flood.
Origin of diluvialLate Latin d&imacron;luvialis, from Latin d&imacron;luvium, flood, from d&imacron;luere, to wash away; see dilute.