Definition of potamometer in English:
potamometer
noun
rare An instrument for measuring the force of a river current.
Origin
Late 19th century; earliest use found in Isaac Funk (1839–1912), publisher and reformer. From ancient Greek ποταμός river + -meter.
Pronunciation
potamometer
/ˌpɒtəˈmɒmɪtə/ 
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