Found 2 items, similar to hydromancy.
English → English (WordNet) Definition: hydromancy hydromancy n : divination by water (as by patterns seen in the ebb and flow of the tides)
English → English (gcide) Definition: Hydromancy Hydromancy \Hy"dro*man`cy\, n. [Hydro-, 1 + -mancy: cf. F. hydromancie.] Divination by means of water, -- practiced by the ancients. [1913 Webster]