caustical

POS

Adjective

HYPHEN

caus=ti=cal

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CIDE DICTIONARY

caustical, a. [L. caustucs, Ge. , fr. to burn. Cf. Calm, Ink.].

Capable of destroying the texture of anything or eating away its substance by chemical action; burning; corrosive; searing. [1913 Webster]
Severe; satirical; sharp; as, a caustic remark. [1913 Webster]

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.

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