spodosolPronunciation: /ˈspɒdə(ʊ)sɒl/Definition of spodosol noun Soil Science a soil of an order characterized by a spodic horizon and including most podzols. Origin: 1960s: from Greek spodos 'ashes' + -sol + Latin solum 'soil'spodosol in other Oxford dictionaries Definition of spodosol in the US English dictionary