obsolete 1. one of the three orders in soil classification 2. a soil with more or less well-developed characteristics that reflect the dominating influence of some local factor of relief, parent material, or age, over the normal effect of climate and vegetation —note this term is not used in the current US system of soil taxonomy; intrazonal soils include Brown Forest, Ground-Water Laterite, Rendzina, Solonchak, and Solonetz —see soil orderThis definition last updated 10/28/2008