1) Produced by a river 2) Stream 3) Watercourse 
Fluvial is a term used in geography and geology to refer to the processes associated with rivers and streams and the deposits and landforms created by them. When the stream or rivers are associated with glaciers, ice sheets, or ice caps, the term glaciofluvial or fluvioglacial is used. ==Fluvial processes== Fluvial processes include the motion of ...
• (a.) Belonging to rivers; growing or living in streams or ponds; as, a fluvial plant.
Produced by the action of of flowing water.
Pertaining to processes of flowing water. Cf. lotic.
Pertaining to a river or stream. A fluvial sandstone is a sandstone that was deposited in a river.
Produced by the action of of flowing water.
Migrating between main rivers and tributaries. Of or pertaining to streams or rivers.
Of or pertaining to a river or rivers.
Said of eroded material that gets transported by rivers or streams. Synonym of alluvial.
Flu'vi·al adjective [ Latin fluvialis , from fluvius river, from fluere to flow: confer French fluvial . See Fluent .] Belonging to rivers; growing or living in streams or ponds; as, a fluvial plant. 
Pertaining to a river or rivers.
migrating between main rivers and tributaries
Involving running water. Usually pertaining to stream processes.
(L: fluere to flow; fluvius=river) pertaing to or produced by a river.
Migrating between main rivers and tributaries. Of or pertaining to streams or rivers.
[adj] - of or relating to or happening in a river
fluvial 1. Pertaining to rivers and river activities; found or living in a river. 2. Produced by a river or stream.
adjective of or relating to or happening in a river; `fluvial deposits`
of or pertaining to a river: a meandering fluvial contour. · produced by or found in a river: fluvial plants.