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degeneracy

American  
[dih-jen-er-uh-see] / dɪˈdʒɛn ər ə si /

noun

  1. degenerate state or character.

  2. the process of degenerating; decline.

  3. degenerate behavior, especially behavior considered sexually deviant.

  4. Physics. the number of distinct quantum states of a system that have a given energy.


degeneracy British  
/ dɪˈdʒɛnərəsɪ /

noun

  1. the act or state of being degenerate

  2. the process of becoming degenerate

  3. physics the number of degenerate quantum states of a particular orbital, degree of freedom, energy level, etc

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

Etymology

Origin of degeneracy

First recorded in 1655–65; degener(ate) + -acy

Vocabulary lists containing degeneracy

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Degeneracy had not been replaced by morality, wrote artist Oskar Schlemmer, but by “tried and true purveyors of kitsch.”

From Salon • Jun. 8, 2025

Degeneracy is believed to be a cellular mechanism to reduce the negative impact of random mutations.

From Textbooks • Jun. 9, 2022

In volume five of his 1781 book Natural History, General and Particular, Buffon coined his Theory of American Degeneracy.

From The Guardian • Apr. 23, 2020

Educators across the new nation were determined to show young schoolchildren how misguided the theory of New World Degeneracy was.

From Slate • Sep. 12, 2012

Degeneracy, rather than signaling the downfall of a society, as it once did, will now signal peace for a troubled world.

From "A Confederacy of Dunces" by John Kennedy Toole