potamology

[ pot-uh-mol-uh-jee ]
/ ˌpɒt əˈmɒl ə dʒi /

noun

the study of rivers.
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British Dictionary definitions for potamology

potamology

/ (ˌpɒtəˈmɒlədʒɪ) /

noun

obsolete the scientific study of rivers

Word Origin for potamology

C19: from Greek potamos river + -logy
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012