diacaustic

[dahy-uh-kaw-stik]Mathematics, Optics.

adjective

noting a caustic surface or curve formed by the refraction of light.

noun

a diacaustic surface or curve.

Compare catacaustic.

Origin of diacaustic

First recorded in 1695–1705; dia- + caustic

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for diacaustic

Historical Examples of diacaustic

Diacaustic, dī-a-kaws′tik, adj. pertaining to curves formed by the intersections of rays of refracted light.
Chambers's Twentieth Century Dictionary (part 1 of 4: A-D)
Various

British Dictionary definitions for diacaustic

diacaustic

adjective

(of a caustic curve or surface) formed by refracted light rays

noun

a diacaustic curve or surface

Compare catacaustic

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012