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riverbed

American  
[riv-er-bed] / ˈrɪv ərˌbɛd /

noun

  1. the channel in which a river flows or formerly flowed.


Etymology

Origin of riverbed

First recorded in 1825–35; river 1 + bed

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

NASA's Perseverance rover has collected samples from Jezero Crater, an ancient Martian riverbed, and they may contain evidence of very early life.

From Science Daily • Jan. 6, 2026

The Eisbach wave on a side branch of the Isar River had been a landmark in the Bavarian city since the 1980s but it vanished in October after annual cleanup work along the riverbed.

From Barron's • Dec. 28, 2025

“It’s the size of a lake but it’s not deep. ... It’s more like a very, very large riverbed without the flow — a wading pool maybe.”

From Los Angeles Times • Dec. 12, 2025

Video of the scene late Wednesday showed officers taking photographs and walking through a homeless encampment set up along the edge of the riverbed.

From Los Angeles Times • Aug. 7, 2025

Her skin is mottled and cracked like a scorched riverbed from the tip of her trunk all the way down to her wide feet.

From "Water for Elephants" by Sara Gruen