Definition of hanging wall in English:

hanging wall

Syllabification: hang·ing wall

Entry from US English dictionary

noun

Geology
The block of rock that lies above an inclined fault or an ore body. Compare with footwall.

Definition of hanging wall in:

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Word of the day demoralize
Pronunciation: dɪˈmɒrəlʌɪz
verb
cause (someone) to lose confidence or hope