Definition of "fluvial" [flu•vi•al]

• Of, relating to, or inhabiting a river or stream. (adjective)
• Produced by the action of a river or stream. (adjective)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "This second form, often called fluvial, occurs only in relatively larger river basins that contain a network of headwater spawning tributaries connected to larger riverine habitat, allowing bull trout to undertake movements of more than 100 miles 160 km as they search for prey."
• "Phenomena associated with flowing water are called fluvial processes."
• "All of these phenomena point toward what geologists call fluvial processes -- those associated with running water."