A-horizon

noun

The topmost layer of the soil horizons; topsoil

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Meanings

nounA-horizon (plural A-horizons)

plural A-horizons

  1. soil scienceThe topmost layer of the soil horizons; topsoil
Cite this entry
APA

A-horizon. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/A-horizon

MLA

“A-horizon.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/A-horizon. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “A-horizon,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/A-horizon.

Source: A-horizon on Wiktionary, CC BY-SA 4.0.