pincushion distortion
noun Optics.
a distortion produced by a lens in which the magnification increases toward the edge of the field.
Compare
barrel distortion.
Origin of pincushion distortion
First recorded in 1890–95
Words nearby pincushion distortion
pinckney,
pinckney's treaty,
pincus,
pincushion,
pincushion cactus,
pincushion distortion,
pincushion flower,
pindan,
pindar,
pindaric,
pindaric ode