- Learn English
-
Learn grammar
-
List of words
-
Study your cards
-
Hang On, Man!
-
Audio Books
-
More apps
- Recent searches
-
apex
-
supplementary
-
says
-
indent
-
subtly
-
massacres
-
ad valorem tax
-
buckeye
-
lest
-
acipenseridae
- 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