All possible synonyms of the word A horizon as well as its hypernyms, hyponyms, antonyms, derivations, entailments, meronyms, pertainyms, domain members, similar words, verb groups, and so on...
A-horizon, A horizon
- the top layer of a soil profile; usually contains humus
- soil horizon: a layer in a soil profile
- humus: partially decomposed organic matter; the organic component of soil
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