Potamology
Pronunciation : Pot`a*mol"o*gy
Part of Speech : n.
Etymology : [Gr. -logy.]
Definition : Defn: A scientific account or discussion of rivers; a treatise on rivers; potamography.
Source : Webster's Unabridged Dictionary, 1913
Merriam-Webster's Everyday Language Reference Set: Includes: The Merriam-Webster Dictionary, The Merriam-Webster Thesaurus, and The Merriam-Webster Vocabulary Builder