A horizon
noun
ˈā- 
: the uppermost dark-colored layer of a soil consisting largely of partly disintegrated organic debris
Word History
First Known Use
1896, in the meaning defined above
- fern palm
- fern poisoning
- fern scale
- fern seed
- fern staggers
- fern tree
- fern weevil
- fern-bush
- Fernambuco wood
- Fernandeño
- fernandeños
- fernandinite
- Fernando de Noronha
- fernando póo
- fernbird
- cleaning (out)
- cleaning (up)
- cleaning crop
- cleaning hinge
- cleaning house
- cleaning lady
- cleaning mark
- cleaning off
- cleaning out
- cleaning person