Definition of "riverbed" [riverbed]

• The area between the banks of a river ordinarily covered by water. (noun)

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.

• "When the trucks do take it away, I’ve heard rumors that it’s thrown in the river (which, if you’ve seen the riverbed, is not too difficult to believe)."
• "To reach the valley floor, you descend concrete steps that lead to the shingle riverbed, which is crossed by a small footbridge."
• "The part that had felt like a riverbed was a riverbed."