- a soil with distinct A, B, and C horizons.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
- Soil in which A, B, and C horizons can be seen as three distinct layers in vertical section.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.