👉 Streambed is a term used in geology and hydrology to describe the area of bedrock or sedimentary rock that flows over a river, ocean, lake, or other body of water. The term "streambed" refers to the part of a river or other watercourse where the current or stream flow carries sediments from the bottom of the waterway upstream. Streambeds can be found in various forms and sizes, including: 1. Flat: Streams that flow straight without any changes