Emily Dickinson Lexicon

DI-LU'VIAL, or DI-LU'VI-AN, a. [L. diluvium, a deluge, from diluo. See Dilute.]

1. Pertaining to a flood or deluge, more especially to the deluge in Noah's days.
2. Effected or produced by a deluge, particularly by the great flood in the days of Noah. Buckland.