say it: di-jen-ur-AY-shuhn
degeneration is a noun meaning "the process of declining from a higher to a lower level of effective power or vitality or essential quality". It carries 3 recorded senses.
the process of declining from a higher to a lower level of effective power or vitality or essential quality
the state of being degenerate in mental or moral qualities
passing from a more complex to a simpler biological form
Forms marked · are formed by the regular rule rather than recorded in the source data. English keeps a few hundred irregulars and the rest follow the pattern, so the rule is right far more often than not — but it is a rule, and the mark says so.
Definitions, synonyms and semantic relations for degeneration come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.