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Webster 1913 Edition

{

, }

Adj.

[L.

caustucs

, Ge. [GREEK], fr. [GREEK] to burn. Cf.

Capable of destroying the texture of anything or eating away its substance by chemical action; burning; corrosive; searing.

Severe; satirical; sharp;

as, a

caustic

remark

Syn. – Stinging; cutting; pungent; searching.

caustical ‎(comparative more caustical, superlative most caustical)