fluviatile

from The Collaborative International Dictionary of English v.0.48
Fluviatile \Flu"vi*a*tile\, a. [L. fluviatilis, fr. fluvius
   river: cf. F. fluviatile.]
   Belonging to rivers or streams; existing in or about rivers;
   produced by river action; fluvial; as, fluviatile starta,
   plants. --Lyell.
   [1913 Webster]
    

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