Definitions

1. adjective

relating to or characteristic of rivers or streams

“The fluviatile landscape of the delta region is home to diverse wildlife.”

2. noun

a river or stream; a fluviatile deposit

“The geologist studied the fluviatile deposits in the ancient riverbed.”

3. noun

a deposit formed by the action of a river or stream

“The fluviatile deposit was rich in fossilized plant remains.”