fluvialist

== English == === Alternative forms === Fluvialist === Etymology === From fluvial +‎ -ist. === Noun === fluvialist (plural fluvialists) (historical) Someone who explains geological phenomena by the action of streams and rivers, especially erosion. ==== Coordinate terms ==== diluvialist === References === “fluvialist”, in Webster’s Revised Unabridged Dictionary, Springfield, Mass.: G. & C. Merriam, 1913, →OCLC.