Definition of Caustec

{ Caus"tic (?), Caus"tic*al (?), } a. [L. caustucs, Ge. &?;, fr. &?; to burn. Cf. Calm, Ink.] 1. Capable of destroying the texture of anything or eating away its substance by chemical action; burning; corrosive; searing.

2. Severe; satirical; sharp; as, a caustic remark.

Caustic curve(Optics), a curve to which the ray of light, reflected or refracted by another curve, are tangents, the reflecting or refracting curve and the luminous point being in one plane. -- Caustic lime. See under Lime. -- Caustic potash, Caustic soda(Chem.), the solid hydroxides potash, KOH, and soda, NaOH, or solutions of the same. -- Caustic silver, nitrate of silver, lunar caustic. -- Caustic surface(Optics), a surface to which rays reflected or refracted by another surface are tangents. Caustic curves and surfaces are called catacaustic when formed by reflection, and diacaustic when formed by refraction.

Syn. -- Stinging; cutting; pungent; searching.

Cau"stic, n. [L. causticum (sc. medicamentum). See Caustic, a.] 1. Any substance or means which, applied to animal or other organic tissue, burns, corrodes, or destroys it by chemical action; an escharotic.

2. (Optics) A caustic curve or caustic surface.

capable of destroying organic tissue or eating away its substance by chemical action.
severe; satirical; sharp.
a caustic remark
Any substance or means which, applied to animal or other organic tissue, burns, corrodes, or destroys it by chemical action; an escharotic.
(mathematics) The envelope of reflected or refracted rays for a given curve.
(computer graphics) An irregular highlight reflected from or refracted through a curved surface.

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