Defn: One who explains geological phenomena by the Noachian deluge.
Lyell.

DILUVIAN
Di*lu"vi*an, a. Etym: [Cf. F. diluvien.]

Defn: Of or pertaining to a deluge, esp. to the Noachian deluge; diluvial; as, of diluvian origin. Buckland.

DILUVIATE
Di*lu"vi*ate, v. i. Etym: [L. diluviare.]

Defn: To run as a flood. [Obs.] Sir E. Sandys.

DILUVIUM
Di*lu"vi*um, n.; pl. E. Diluviums, L. Diluvia. Etym: [L. diluvium.
See Dilute, Deluge.] (Geol.)

Defn: A deposit of superficial loam, sand, gravel, stones, etc., caused by former action of flowing waters, or the melting of glacial ice.

Note: The accumulation of matter by the ordinary operation of water is termed alluvium.

DIM
Dim, a. [Compar. Dimmer; superl. Dimmest.] Etym: [AS. dim; akin to
OFries. dim, Icel. dimmr: cf. MHG. timmer, timber; of uncertain
origin.]

1. Not bright or distinct; wanting luminousness or clearness; obscure in luster or sound; dusky; darkish; obscure; indistinct; overcast; tarnished. The dim magnificence of poetry. Whewell. How is the gold become dim! Lam. iv. 1. I never saw The heavens so dim by day. Shak. Three sleepless nights I passed in sounding on, Through words and things, a dim and perilous way. Wordsworth.