Diacaustic

Definition of Diacaustic

Di`a`caus´tic

a.	1.	(Opt.) Pertaining to, or possessing the properties of, a species of caustic curves formed by refraction. See Caustic surface, under Caustic.
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.
	2.	(Math.) A curved formed by the consecutive intersections of rays of light refracted through a lens.

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