HyperDic: a_horizon

English > 1 sense of the expression A horizon:
NOUNlocationA horizon, A-horizonthe top layer of a soil profile
English > A horizon: 1 sense > noun 1, location
MeaningThe top layer of a soil profile; usually contains humus.
SynonymA-horizon
Instance ofsoil horizonA layer in a soil profile
Substanceshumuspartially decomposed organic matter

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