rockfall
Kelime Anlamı :

1. göçük.
2. kaya düşmesi.
3. kaya düsmesi.
Tanımlar :
1. A fall of rocks, as from a cliff.
from The American Heritage® Dictionary of the English Language, 4th Edition
1. A quantity of rocks that has fallen from a cliff etc.
from Wiktionary, Creative Commons Attribution/Share-Alike License