'Diacaustic' definitions:

Definition of 'Diacaustic'

From: 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]

Definition of 'Diacaustic'

From: 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