- Learn English
-
Learn grammar
-
List of words
-
Study your cards
-
Hang On, Man!
-
Audio Books
-
More apps
- Recent searches
-
marvellously
-
ryot
-
pinnacle
-
1-hitter
-
91
-
adrenocorticotrophic
-
space
-
eternally
-
stubborn
-
acrylonitrile
- Hide translation
A horizon
A horizon /eɪ ˈhɒrɪˌzɒn/
noun
-
The top layer of a soil profile; usually contains humus
(
A horizon
, A-horizon
)
the top layer of a soil profile; usually contains humus