Definitions

from The Century Dictionary.

  • In natural history, due to degradation; lowered in type through degradation; degenerated: as, a degradational form; degradational structures.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • adjective geology Pertaining to or formed by degradation.

Etymologies

from Wiktionary, Creative Commons Attribution/Share-Alike License

degradation +‎ -al

Examples

  • Although there are numerous degradational/aggradational cycles within the Chinle Formation, a single unconformable horizon within or at the base of the Sonsela Member that can be traced across the entire western United States (the "Tr-4 unconformity") probably does not exist.

    ScienceBlogs Channel : Life Science

  • These studies have found evidence of significant transitions from degradational land use trajectories to more sustainable and productive production systems.

    Featured Articles - Encyclopedia of Earth

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