Letters that make A-horizon
a, o, n, h, r, z, i are letters that make 'A-horizon'
a, o, n, h, r, z, i are letters that make 'A-horizon'
1 possible definitions for 'A-horizon'
Under this definition, a-horizon is a noun and has the following properties:
A horizon has the same meaning as A-horizon
'A-horizon' can be considered an instance of soil horizon.
humus is a substance of A-horizon.