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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.

In a dry riverbed deep within a forest near the Amazon in Brazil, paleontologists uncovered a fossilized jawbone from a previously unknown ancient animal.

From Science Daily • May 1, 2026

In a dried-up riverbed, there’s a rock with a freshly drilled hole in it—the handiwork of NASA’s Perseverance rover, which touched down in Jezero Crater in 2021.

From The Wall Street Journal • Apr. 23, 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

The mudstones, found in a dusty riverbed by Nasa's Perseverance Rover, are dotted with intriguing markings nicknamed leopard spots and poppy seeds.

From BBC • Sep. 10, 2025

“When we reach the main riverbed, we’ll make a hard right, and take that river all the way up to the mountains,” I tell everyone.

From "Dry" by Neal Shusterman and Jarrod Shusterman

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