Definitions

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. a caustic curve formed by light reflecting from a curved surface
  • n. 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

from the GNU version of the Collaborative International Dictionary of English

  • adj. Relating to, or having the properties of, a caustic curve formed by reflection. See caustic, a.
  • n. A caustic curve formed by reflection of light.

from The Century Dictionary and Cyclopedia

  • In geometry, belonging to caustic curves formed by reflection.
  • n. 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.

Etymologies

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