Look up , degeneracy, or degenerate in Wiktionary, the free dictionary.degenerative |

**Degeneracy** may refer to:

## Science

- Codon degeneracy
- Degeneracy (biology), the ability of elements that are structurally different to perform the same function or yield the same output
- Degeneration (medical)
- Degenerative disease, a disease that causes deterioration over time

- Degeneration theory late 19th/early 20th century

### Mathematics

- Degeneracy (mathematics), a limiting case in which a class of object changes its nature so as to belong to another, usually simpler, class
- Degeneracy (graph theory), a measure of the sparseness of a graph
- Degenerate form, bilinear form ƒ(
*x*,*y*) on a vector space*V*is one such that the map from*V*to*V**(the dual space of*V*) given by is not an isomorphism - Degenerate distribution, the probability distribution of a random variable which only takes a single value
- Degenerate conic, a conic (a second-degree plane curve, the points of which satisfy an equation that is quadratic in one or the other or both variables) that fails to be an irreducible curve
- Degenerate dimension, a dimension key in the fact table that does not have its own dimension table, because all the interesting attributes have been placed in analytic dimensions. The term "degenerate dimension" was originated by Ralph Kimball

### Quantum mechanics

- Degenerate energy levels, different arrangements of a physical system which have the same energy
- Degenerate matter, a very highly compressed phase of matter which resists further compression because of quantum mechanical effects
- Degenerate semiconductor, a semiconductor with such a high doping-level that the material starts to act more like a metal than as a semiconductor

## Other uses

- Degenerate art, a term adopted in the 1920s by the Nazi Party in Germany to describe modern art.
- The Decadent art movement, often associated with degeneracy
*Degenerate*(album), a 2010 album by the British band Trigger the Bloodshed- "Degenerate", a song by Blink-182 from the album
*Dude Ranch* - "Degenerates", a song by A Day to Remember from the album
*You're Welcome* *Degeneration*, a type of semantic change*Degeneration*(Max Nordau), an 1892 book*Resident Evil: Degeneration*, a movie- Dégénération, a single by Mylène Farmer
- Degeneration X (also spelled D-Generation X and often abbreviated DX or D-X) was a professional wrestling tag team in WWE

## See also

- Devolution (biology), the notion that a species can change into a more "primitive" form over time
- Decadence (disambiguation)
- Deterioration (disambiguation)
- Regeneration (disambiguation) (antonym)