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fluviology
fluviology n.
Brit. 
/ˌfluːvɪˈɒlədʒi/
, /ˌfluːvɪˈɒlədʒi/U.S. /ˌfluviˈɑlədʒi/
potamology; the facts and conditions relating to a river or river-system./ˌfluviˈɑlədʒi/ΘΚΠ
the world > the earth > earth sciences > hydrography > [noun] > potamology
potamology1829
fluviology1904
1904 Amer. Geol. Jan. 43 The modern science of fluviology.
1924 Glasgow Herald 13 Dec. 8 An unexpected addition to the fluviology of Glasgow.
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