DILUVIAL, DILUVIAN adjective [Latin , a deluge. See Dilute.] 1. Pertaining to a flood or deluge, more especially to the deluge in Noahs day. 2. Effected or produced by a deluge, particularly by the great flood in the days of Noah.
Source: Webster's 1828 American Dictionary ↗ · public-domain · returned verbatim, no AI