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Anomaly may refer to:




  • Congenital anomaly, popularly referred to as a birth defect, a disorder present at birth, the result of an inherited gene mutation, an error during morphogenesis or fetal development, or an environmental factor
    • Physical anomaly, a deformation of an anatomical structure
      • Congenital vertebral anomaly, any of several malformations of the spine in animals and infants
      • Collie eye anomaly, a congenital, inherited, bilateral eye disease of dogs involving the retina, choroid, and sclera
      • Coronary artery anomaly, a congenital abnormality in the coronary anatomy of the heart
      • Ebstein's anomaly, a congenital heart defect in which the opening of the tricuspid valve is displaced towards the right ventricle of the heart
      • Uhl anomaly, a very rare congenital heart disease with a partial or total loss of the myocardial muscle in the right ventricle
      • Vaginal anomalies, common, rare and congenital abnormal or the absence of the vagina


  • Anomalous, a species of moth in the Noctuid family
  • Chromosome anomaly, a disorder whose ultimate cause involves a structural error in a chromosome or an atypical number of chromosomes
  • Genetic anomaly, a disorder whose ultimate cause is a genetic or chromosomal mutation
  • Teratology, the study of all developmental anomalies


  • Anomalous dispersion (optics), when the speed of an electromagnetic wave increases with increasing frequency
  • Anomalon, a hypothetical type of nuclear matter that shows an anomalously large reactive cross section
  • Anomaly (physics), a failure of a symmetry of a theory's classical action
  • Conformal anomaly, a quantum phenomenon that breaks the conformal symmetry of the classical theory
  • Chiral anomaly, an anomalous nonconservation of a chiral current
  • Gauge anomaly, the effect of quantum mechanics that invalidates the gauge symmetry of a quantum field theory
  • Global anomaly, an anomaly in quantum physics
  • Gravitational anomaly, an effect in quantum mechanics that invalidates the general covariance of some theories of general relativity
  • Konishi anomaly, the violation of the conservation of the Noether current associated with certain transformations
  • Mixed anomaly, an effect in quantum mechanics
  • Parity anomaly, an anomaly that is associated with parity


  • In astronomy, an anomaly of an elliptical orbit, generally measured with respect to an apsis, usually the periapsis
  • Anomalous precession, another term for "apsidal precession"
  • Eccentric anomaly, an intermediate value used to compute the position of a celestial object as a function of time
  • Flyby anomaly, an unexpected energy increase during the flybys of the Earth by various satellites
  • Mean anomaly, a measure of time in the study of orbital dynamics
  • Pioneer anomaly, the observed deviation of the trajectories of some unmanned space probes, and especially Pioneer 10 and Pioneer 11
  • South Atlantic Anomaly, an area where the Earth's inner Van Allen radiation belt comes closest to the Earth's surface
  • True anomaly, the angle between the direction of periapsis and the current position of an object on its orbit


Fictional entities[edit]

  • Anomaly, a rift in the space-time continuum in the television series Futurama
  • Anomaly, any shortcut to hyperspace travel in Robert Heinlein's novels of the 1950s, today called wormholes
  • "Anomaly" (Star Trek: Enterprise), a 2003 episode of Star Trek: Enterprise
  • The Anomaly, a 2014 film
  • Anomaly (comics), a villain in DC Comics
  • Anomaly (Primeval), a time portal in the TV series Primeval
  • Spatial anomaly, a broad term in the Star Trek dramas and other works of science fiction for any sort of extraordinary disruption in the space-time continuum
  • The Tycho Magnetic Anomaly (TMA) on the Moon in the novel and in the film 2001: A Space Odyssey by Sir Arthur C. Clarke and Stanley Kubrick

Video games[edit]





  • "Anna Molly" (a word play on the word "anomaly"), a song by Incubus
  • "An Anomaly", a 2007 song by It Prevails from the album The Inspiration
  • "The Anomaly", a 2011 song by Scar Symmetry from the album The Unseen Empire
  • "Anomaly", a 2012 song by KB from the album Weight & Glory

Other uses in culture[edit]


  • Anomaly detection, the process of detecting anomalies from the other, relevant data
  • Anomaly in software, anything that differs from expectations, whether the expectations resulted from documentation, experiences, or otherwise


Other uses[edit]

  • Anomalistics, the study of scientific anomalies
  • Ararat anomaly, an object on Mount Ararat in Turkey that some have claimed to be the remains of Noah's Ark

See also[edit]