caustic surface

noun Optics.

the surface to which all light rays emanating from a single point and reflected by a curved surface, as a concave mirror, are tangent.

Nearby words

  1. caustic baryta,
  2. caustic curve,
  3. caustic lime,
  4. caustic potash,
  5. caustic soda,
  6. causticity,
  7. causticly,
  8. cauterant,
  9. cauterization,
  10. cauterize

Origin of caustic surface

First recorded in 1865–70

Also called caustic. Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019