ge·o·sol 
(jēō-sôl′, -sŏl′)
(jēō-sôl′, -sŏl′)n.
An extended region or layer consisting of one or more soil horizons, especially geologically old paleosols.
[GEO- + Latin solum, soil.]
- disinhibition
- disintegrate
- disintegration
- disintegrative
- disintegrator
- disinter
- disinterest
- disinterested
- disinterestedly
- disintermediation
- disinterment
- disintoxicate
- disintoxication
- disinvent
- disinvention
- disinvestment
- disinvitation
- disinvite
- disjoin
- disjoint
- disjointed
- ummah
- ump
- umpire
- Umpqua River