Source : Webster's Revised Unabridged Dictionary (1913)

Diluvian \Di*lu"vi*an\, a. [Cf. F. diluvien.]
   Of or pertaining to a deluge, esp. to the Noachian deluge;
   diluvial; as, of diluvian origin. --Buckland.

Source : WordNet®

diluvian
     adj : of or connected with a deluge [syn: {diluvial}]