pre-diluvial, a. Geol.
(priːdɪˈl(j)uːvɪəl)
[f. pre- B. 1 + diluvial.]
Of or belonging to an age before that of the Diluvium or Northern Drift.
| 1857 B. Taylor North. Trav. xxvi. 269 The Kiöllefjord, which in the pre-diluvial times must have been a tremendous mountain gorge. |