barrel distortion
noun Optics.
a distortion produced by a lens in which the magnification decreases toward the edge of the field.
Compare
pincushion distortion.
Origin of barrel distortion
First recorded in 1885–90
Words nearby barrel distortion
barrel bolt,
barrel cactus,
barrel chair,
barrel chest,
barrel cuff,
barrel distortion,
barrel engine,
barrel knot,
barrel organ,
barrel race,
barrel roll
British Dictionary definitions for barrel distortion
barrel distortion
noun
photog
distortion of an image produced by an optical system that causes straight lines at image margins to bulge outwards