Definitions

from The Century Dictionary.

  • In geometry, belonging to caustic curves formed by reflection.
  • noun In optics, a caustic curve formed by the reflection of the rays of light: so called to distinguish it from the diacaustic, which is formed by refracted rays. See caustic, n., 3.

from the GNU version of the Collaborative International Dictionary of English.

  • adjective (Physics) Relating to, or having the properties of, a caustic curve formed by reflection. See caustic, a.
  • noun (Physics) A caustic curve formed by reflection of light.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun a caustic curve formed by light reflecting from a curved surface
  • noun mathematics the envelope of all rays that emanate from a specified point (the radiant point) and reflect from a given curve; the evolute of the orthotomic

Etymologies

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