English Reference
noun

degradation

n.
US /ˌdɛɡɹəˈdeɪʃən/ UK /dɪɡɹɐdˈeɪʃən/ degra·da·tion UK spelling degradation's, degradation's

  1. 01 B2 Upper Intermediate Academic Science

    the process of the natural world being damaged or destroyed.

    the deterioration of the environment through depletion of resources such as air, water, and soil.

    Simple

    Soil degradation is a serious problem for farmers in this dry region.

    In context

    Environmental degradation caused by industrial runoff has led to a significant decline in local biodiversity over the last decade.

  2. 02 C1 Advanced Formal

    a situation that makes someone feel ashamed or lose the respect of others.

    the act of lowering someone's social rank, reputation, or character; a state of humiliation or abasement.

    Simple

    He felt a sense of degradation when he was forced to beg for food.

    In context

    The prisoners were subjected to constant degradation in an attempt to break their spirit and sense of self-worth.

    honorexaltation
  3. 03 C1 Advanced Technical Science

    the process of a material or chemical breaking down and becoming weaker.

    a deleterious change in the chemical structure or physical properties of a material due to exposure or use.

    Simple

    The degradation of the plastic was caused by many years of sunlight.

    In context

    Engineers monitored the thermal degradation of the polymer to ensure it could withstand the high temperatures of the engine bay.

  4. 04 C2 Proficiency Technical Science

    the wearing away of rocks or land by water, wind, or ice.

    the wearing down of the Earth's surface by natural processes such as erosion or weathering.

    Simple

    The degradation of the river banks was caused by the heavy winter floods.

    In context

    Geological degradation over millions of years has transformed the once-jagged mountain range into a series of rolling hills.

    aggradation

Eukaryotic microfossils have endured billions of years of geological alteration and degradation, making already tiny remains even harder to detect.

ScienceDaily· 17 Aug 2026

The species persists in few Michigan sites and Manitoba; habitat loss, wetland degradation, and pesticides remain major threats.

Phys.org· 14 Aug 2026

From French dégradation. Morphologically degrade + -ation.

Etymology adapted from Wiktionary, available under CC BY-SA 4.0.

This entry
Level C1 · Advanced
Frequency Frequent
Updated