fluvio-, fluvi- (Latin: river, stream).fluvial: 
1. Pertaining to rivers and river activities; found or living in a river.  
2. Produced by a river or stream. fluvialist: 
One who explains certain phenomena in geology or physical geography by the action of existing streams.
 
fluviated: 
Overflowed by a river, marshy.
 
fluviatic: 
Growing or living in streams.
 
fluviatile: 
1. Inhabiting rivers and streams; fluvial.  
2. Of or pertaining to a river or rivers; found, growing, or living in rivers; formed, caused, or produced by the action of rivers. fluviation: 
1. The formation of rivers.  
2. A river system. fluvicoline: 
Inhabiting or frequenting rivers or streams; said of certain birds, fishes, mollusks, etc.
 
fluvioaeolian: 
In geology, produced or caused by the action of streams and wind.
 
fluvioglacial, glaciofluvial: 
Pertaining to streams flowing from a glacier, or to deposits laid down from glacial streams; glaciofluvial.
 
fluviograph: 
An instrument for measuring and recording automatically the rise and fall of a river.
 
fluviolacustrine: 
Pertaining to or produced by the action of both rivers and lakes.
 
fluviologist: 
A specialist in the study of rivers.
 
fluviology: 
1. The study of rivers.  
2. The facts and conditions relating to a river or a river-system. fluviomarine: 
1. Inhabiting rivers and the sea.  
2. Applied to deposits formed by river-currents at the bottom of the sea. fluviometer: 
An instrument for measuring the rise and fall of rivers.
 
fluvioterrestrial: 
1. Inhabiting streams and the surrounding land.  
2. Pertaining to the land-surface of the globe and its rivers. fluviovolcanic: 
In geology, a reference to the combined action of volcanoes and streams, as in beds of volcanic ash deposited by a river.
 
fluviraption: 
Erosion as a result of running water or wave action.
 
interfluvial: 
Situated between (the valleys of) adjacent watercourses.
 
multifluvian: 
Having many rivers flowing into it.
 
subfluvial: 
Extending under a river.
 
transfluvial, transfluvian: 
Situated or dwelling across or beyond a river:
 
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