from The American Heritage® Dictionary of the English Language, 4th Edition
- n. Geology The plane along which the break or shear of a fault occurs.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. The plane, or surface formed between the two rock blocks that slip one with the other during an earthquake. The edge of the fault plane can often be seen on the land as a fault line.
Sorry, no etymologies found.