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highwall

American  
[hahy-wawl] / ˈhaɪˌwɔl /

noun

  1. the unexcavated face of exposed overburden and coal in a surface mine.

Etymology

Origin of highwall

high + wall

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.

Tilcon manager Bill Conklin said they spotted the dog near the top of what he referred to as a highwall, which dropped 45 feet to the rocky edge of a sump pit where groundwater accumulates.

From Washington Times • Aug. 27, 2016

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.