aspherical surface
noun
photog
a lens or mirror surface that does not form part of a sphere and is used to reduce aberrations
Words nearby aspherical surface
asphalt rock,
asphaltene,
asphaltite,
asphaltum,
aspherical,
aspherical surface,
asphodel,
asphyxia,
asphyxia livida,
asphyxia neonatorum,
asphyxiant