formation No Further a Mystery
delta - a reduced triangular space of alluvial deposits where a river divides prior to entering a bigger system of h2o; "the Mississippi River delta"; "the Nile delta"British isles:*United kingdom And perhaps other pronunciationsUK And maybe other pronunciations/fɔːrˈmeɪʃən/US:USA pronunciation: IPA and respellingUSA pronunciation: IPA/fileɔ