noun ·2 syllables ·Rare ·Advanced level

Definitions

Noun

1. 1
   The section of rock that extends below a diagonal fault line (the corresponding upper section being the hanging wall).
2. 2
   the lower wall of an inclined fault wordnet
3. 3
   The under wall of an enclosed vein.

Etymology

From foot + wall.

Related phrases

fault linehanging wall

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.