- of or relating to a river: a meandering fluvial contour.
- produced by or found in a river: fluvial plants.
- of, relating to, or occurring in a riverfluvial deposits
“pertaining to a river,” late 14c., from Latin fluvialis “of a river,” from fluvius “river,” related to fluere “to flow” (see flow (v.)).
- Relating to or inhabiting a river or stream.
- Produced by the action of a river or stream.