Diacaustic

2 definitions found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Diacaustic \Di`a*caus"tic\, n.
     1. (Med.) That which burns by refraction, as a double convex
        lens, or the sun's rays concentrated by such a lens,
        sometimes used as a cautery.
        [1913 Webster]
  


     2. (Math.) A curved formed by the consecutive intersections
        of rays of light refracted through a lens. Diachylon

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Diacaustic \Di`a*caus"tic\, a. [Pref. dia- + caustic.] (Opt.)
     Pertaining to, or possessing the properties of, a species of
     caustic curves formed by refraction. See {Caustic surface},
     under {Caustic}.
     [1913 Webster]