scree 
(skrē)
(skrē)n.
1. Loose rock debris covering a slope.
2. A slope of loose rock debris at the base of a steep incline or cliff.
[Probably ultimately from Old Norse skridha, landslide, from skrīdha, to slide.]
- autophagy
- autopilot
- autoplastic
- autoplastically
- autoplasty
- autopolyploid
- autopolyploidy
- autopsic
- autopsical
- autopsist
- autopsy
- autoradiogram
- autoradiograph
- autoradiographic
- autoradiography
- autoroute
- autos-da-fé
- autosomal
- autosomally
- autosome
- autostrada
- autosuggest
- autosuggestibility
- autosuggestible
- autosuggestion