Anomaly

Anomaly may refer to:

Astronomy

 * 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 Earth flybys of satellites
 * Mean anomaly, a measure of time in the study of orbital dynamics
 * Pioneer anomaly, the observed deviation of the trajectories of various unmanned spacecraft
 * South Atlantic Anomaly, the region where Earth's inner van Allen radiation belt makes its closest approach to the planet's surface
 * True anomaly, the angle between the direction of periapsis and the current position of an object on its orbit

Geophysics

 * Bouguer anomaly, an anomaly in gravimetry
 * Free-air anomaly, the gravity anomaly that has been computed for latitude and corrected for elevation of the station
 * Gravity anomaly, the difference between the observed gravity and a value predicted from a model
 * Iridium anomaly, a very rare element in the Earth's crust
 * Kursk Magnetic Anomaly, a territory rich in iron ores located within Kursk Oblast, Belgorod Oblast, and Oryol Oblast

Medicine

 * Congenital vertebral anomaly, a collection of 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 seldom congenital heart disease with a partial or total loss of the myocard muscle in the righter ventricle

Quantum physics

 * Anomaly (physics), the 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, the anomalous nonconservation of a chiral current
 * Gauge anomaly, an 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 of quantum mechanics that invalidates the general covariance of a theory of general relativity
 * Mixed anomaly, an effect of quantum mechanics
 * Parity anomaly, an anomaly associated with parity

Religion

 * Ararat anomaly, an object on Mount Ararat claimed to be Noah's Ark

Other

 * Anomaly (Primeval), a fictional phenomena from the TV series Primeval
 * Anomaly (comics), a DC Comics villain
 * Konishi anomaly, the violation of the conservation of the Noether current associated with certain transformations
 * Market anomaly, a price distortion on a financial market
 * Anomaly in software, anything that differs from expectations, whether the expectations resulted from documentation, experiences or otherwise
 * "Anomaly" (Enterprise episode), a third season episode of Star Trek: Enterprise
 * Spatial anomaly, a very broad term in Star Trek and other science fiction for any sort of extraordinary disruption in the space-time continuum
 * Anomalies, a musical album by Cephalic Carnage.
 * Anomalies, small areas in the game S.T.A.L.K.E.R.: Shadow of Chernobyl which have different effects on the game environment.
 * Anna-Molly, a song by Incubus whose title sounds like "anomaly" when sung. It refers to "a woman who may or may not exist in real life".