Aberration has several meanings: In biology:An abnormality of chromosomes In optics:Aberration of light, an astronomical phenomenon which produces an apparent motion of celestial objectsAberration in optical systems, an effect that causes light from one point of an object after transmission through the system to arrive at dfferent pointsChromatic aberration, caused by a lens having a different refractive index for different wavelengths of lightDefocus aberration, meaning out of focusSpherical aberration, an image imperfection that occurs due to the increased refraction of light rays that occurs when rays strike a lens or mirror near its edge In relativistic theory:Relativistic aberration, a formula relating to the searchlight effect Aberration can also refer to:Aberration (Dungeons & Dragons), a creature type in the role-playing gameAberration (film), the horror movie

See more at Wikipedia.org…

Gotta LOVE Wikipedia! : )