The Collaborative International Dictionary
Catacaustic
Catacaustic \Cat`a*caus"tic\, a. [Pref. cata + caustic.]
(Physics)
Relating to, or having the properties of, a caustic curve
formed by reflection. See Caustic, a.
--Nichol.
Catacaustic
Catacaustic \Cat`a*caus"tic\, n. (Physics)
A caustic curve formed by reflection of light.
--Nichol.
Wiktionary
catacaustic
n. 1 a caustic curve formed by light reflecting from a curved surface 2 (context mathematics English) 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