a cliff or steep slope rising at one end of a glaciated valley.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Science definitions for headwall
[ hĕd′wôl′ ]
A steep slope or precipice rising at the head of a valley or glacial cirque.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.