azonal soil

noun

1

: a major soil group often classified as a category of the highest rank and embracing soils that lack well-developed horizons because of immaturity or other factors that have prevented their development compare intrazonal soil, zonal soil

2

: any soil belonging to the azonal soil group (such as the rocky soils on steep slopes)

Word History

First Known Use

1901, in the meaning defined at sense 1

Love words?

You must — there are over 200,000 words in our free online dictionary, but you are looking for one that’s only in the Merriam-Webster Unabridged Dictionary.

Start your free trial today and get unlimited access to America's largest dictionary, with:

• More than 250,000 words that aren't in our free dictionary
• Expanded definitions, etymologies, and usage notes
• Advanced search features
• Ad free!